Artículos de revistas: "Mathematic material"

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Apriliyani, Mila Nurul, Siti Kumawati, Utari Oktaviani y Heny Nugroho. "Analysis Student’s Mathematical Connection Ability of Class XII MIPA SMA N 1 Ngawen on Statistical Material". Proceeding International Conference on Science and Engineering 3 (30 de abril de 2020): 589–94. http://dx.doi.org/10.14421/icse.v3.570.

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The material in mathematics relates to each other and also relates to daily life. Likewise with statistics is one of the materials on the subject of mathematics that also has a relationship with other sciences, and has been widely used in daily life. This research explains the ability of the mathematic connections of the grade XII students of MIPA SMA N 1 Ngawen on the statistical material. With the aim to know the student's mathematic connection ability. The methods used are qualitative descriptive with research instruments in the form of tests and interviews. The research subject consists of 10 students with an analysis model on this research based on its mathematical connection indicators. From this research gained ability on the indicator linking between concepts on a mathematical material and indicators linking between mathematical concepts with daily life belonging to the high, and low category for indicators The mathematical concept with other sciences.

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Udjaja, Yogi, Vincent Sadino Guizot y Natalia Chandra. "Gamification for Elementary Mathematics Learning in Indonesia". International Journal of Electrical and Computer Engineering (IJECE) 8, n.º 5 (1 de octubre de 2018): 3859. http://dx.doi.org/10.11591/ijece.v8i5.pp3859-3865.

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The purpose of this research is to combine multimedia elements and mathematics learning material to a mathematic learning interactive application. Research and design methodology that used is Game Development Life Cycle (GDLC) which consist of initiation, pre-production, production, testing and release. Content inside the game is made using gamification and expert system concept. The result of this research is an interactive learning game to support student to understand mathematic materials. The purpose of this application is to help student to learn mathematic in an interactive and interesting way, to deliver mathematic material easily.

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Udjaja, Yogi, Vincent Sadino Guizot y Natalia Chandra. "Gamification for Elementary Mathematics Learning in Indonesia". International Journal of Electrical and Computer Engineering (IJECE) 8, n.º 5 (1 de octubre de 2018): 3860. http://dx.doi.org/10.11591/ijece.v8i5.pp3860-3865.

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The purpose of this research is to combine multimedia elements and mathematics learning material to a mathematic learning interactive application. Research and design methodology that used is Game Development Life Cycle (GDLC) which consist of initiation, pre-production, production, testing and release. Content inside the game is made using gamification and expert system concept. The result of this research is an interactive learning game to support student to understand mathematic materials. The purpose of this application is to help student to learn mathematic in an interactive and interesting way, to deliver mathematic material easily.

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Brata, Dwija Wisnu y Budi Santoso. "PEMBELAJARAN MATEMATIKA DENGAN OPERATOR DASAR UNTUK ANAK SEKOLAH DASAR BERBASIS MOBILE". Jurnal Ilmiah Informatika 1, n.º 1 (23 de junio de 2016): 46–50. http://dx.doi.org/10.35316/jimi.v1i1.443.

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The concept of teaching mathematic is most important for educators by understanding and application of mathematics content that cater to students, especially primary school students. extending the interesting material, as well as providing assistance to the student to take assessment can assist in attraction, concentration and success in understanding mathematics. It is always related because not all students in a class is able to understand the material quickly, then the required factors that have an interest for children. The interesting will become the factors that support students in learning, if these factors can also be conceptualized as children's activities are carried out every day, it means that if the school use the curriculum, and the home environment playground are always supervised by the parent. so the Interesting in mathematics lessons can be realized also in the integration of emerging technologies, especially mobile phones. The majority the students today have the tool, it will be more efficient to develope of mathematical material is also contained in the mobile. The development can be implemented in mathematic education game. Games designed by researcher wishes to develop mobile based learning materials, especially in mathematic. the Experiments have performed in the implementation of mathematic games with basic operators to produce the final value of the overall respondents who rate amounted to 84.4%. it means that the level of engagement users, especially students very well in playing to respond the educational game designed.

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Mahie, Andi Galsan, Loeky Haryanto, Moh Ivan Azis, Jusmawati Massalesse y Andi Kresna Jaya. "Pemanfaatan Program Microsoft Mathematic Dan Geogebra Untuk Peningkatan Mutu Guru Matematika Tingkat SMP Di Kabupaten Bantaeng Sulawesi Selatan". JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) 3, n.º 2 (24 de octubre de 2019): 187. http://dx.doi.org/10.36339/je.v3i2.247.

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outcomes generated from this activity are as follows: 1) Enhance the ability of Partners in developing existing technology, especially computers in optimizing learning in the classroom through the Geogebra and Microsoft Mathematic programs. Middle School Mathematics Teachers in Bantaeng District are trained in making teaching materials, especially computer-based self-learning modules that are not only material and questions but must be able to develop children's abilities in constructing the concept of the material being taught. The Geogebra and Microsoft Mathematic programs are application programs that can be utilized in dealing with these problems; 2) Training for teachers who are members of the Bantaeng District Junior High School Mathematics Teacher (MGMP). The training material was in the form of a guidebook for the use of the Geogebra program and the Microsoft Mathematics and its use in mathematics learning developed by the Mathematics Department FMIPA UNHAS dedication team. The teaching materials will be used in the training as an initial stage for the teachers to recognize and master the Geogebra and Microsoft Mathematics programs.

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Nida Nurhanifa, Budi Hendrawan y Anggia Suci Pratiwi. "The Effect of Realistic Mathemathic Education (RME) Assisted by Number Hours on Learning Achievement in The Summing Operations Material in Class I SDN Batulawang". Jurnal Sekolah Dasar 5, n.º 2 (9 de septiembre de 2020): 67–74. http://dx.doi.org/10.36805/jurnalsekolahdasar.v5i2.1065.

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Mathematics learning is learning that develops student creativity to improve thingking skills, construct new knowledge to increase good mastery of mathematical material. In learning mathematics there are several obstacles, namely low student achievement, lack of student motivation and students still think that mathematics is difficult and difficult to learn. To overcome these obstacles there is a solution for learning mathematics that is using Realistic Mathematic Education (RME) assisted by the number of hours in the addition operation material. By using Realistic Mathematic Education (RME) assisted by number hours, it is expected to be able to improve student learning achievement in the addition operation material at SDN Batulawang. This research uses quantitative research using quasi experimental methods with the Nonequivalent Control Group Design. This research was conducted in SDN Batulawang with a population of thirty people and used a systematic sample that divided students into two classes using even odd numbers, so that the control class was fifteen people and the experimental class fifteen people. Data collection techniques were carried out through pretest and posttest. Data were analyzed using SPSS.

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Wuryanti, Sri, Fahmi Fahmi y Giri Hamiseno. "Mathematic Learning Material Capabilities on Special Needs". IJDS: Indonesian Journal of Disability Studies 8, n.º 01 (31 de mayo de 2021): 73–84. http://dx.doi.org/10.21776/ub.ijds.2021.008.01.05.

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The purpose of this study was to see the application of students with special needs in inclusive schools and their absorption of Mathematics subject matter in the SMA National Examination 2018/2019 academic year. Although, the National Examination has legally abolished, the results of the last National Examination 2018/2019 can still be used to capture students' minimum academic abilities and also for reflection in order to improve the quality of education better. The ability of students can be seen from the results of the national exam, while the absorption of mathematics can be seen from the proportion of students with special needs in inclusive schools who can correctly answer questions on the National Mathematics Exam. The population of this study were all high school level students who took the National Examination for the 2018/2019 academic year, while the research sample was all inclusive high school students who took the National Examination for the 2018/2019 academic year. The data used is secondary data, namely the SMA National Exam data for the 2018/2019 academic year. Data analysis used Excel software, and then descriptive statistical analysis was carried out. The results showed the highest score of the National Mathematics Examination for students with special needs in inclusive schools was 54.02 and the lowest was 22.69 with an average score of 39.43. The average score of Mathematics for the Science Department is 45.66 (included in the poor category), the Language Department is 40.04 (including the poor category), while the Social Science Department is 29.28 (including the low category). The highest average absorption power of Mathematics in the Science department is 30%, in the scope of Algebra material, the lowest absorption is 23% in the scope of calculus material. In the social studies department, the highest average absorption power in mathematics is 29% each for algebra and statistics, the lowest absorption rate is 18% in the scope of Geometry and Trigonometry. Meanwhile, in the Language Department, the highest average absorption is algebra 38%, the lowest is 30% in the scope of Geometry and Trigonometry. The range of values for participants with special needs is very large so it needs assistance to improve the abilities of students. The weakness of special needs students in Mathematics is the material scope of Geometry and Trigonometry.

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Hidayat, Angga, Yuliana Friska, Anita Anggraini, Moh Thoyib Syafi’i y Ani Kusumaningsih. "PENINGKATAN KETERAMPILAN DASAR MATEMATIKA DAN BAHASA INGGRIS SEBAGAI UPAYA DALAM MENGHADAPI TANTANGAN ERA REVOLUSI INDUSTRI 5.0". Abdimisi 1, n.º 1 (18 de diciembre de 2019): 55. http://dx.doi.org/10.32493/abms.v1i1.3790.

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Problems faced by students living in the Al-Kamilah foundation are a lack of ability to speak English and a lack of basic mathematical calculation skills. The service team decided to provide continuous training for 1 month. This continuity needs to be conducted to provide a deeper effect for the trainees so that the trainees can maximize the training material in preparation for facing the challenges of the industrial revolution era 5.0. Moreover, the material will be given by Pamulang university lecturers who are experienced in teaching mathematics and English. In addition, the determination of trainers is also based on the background of each trainer so that the trainer can provide teaching material in a way that is easily understood by the trainees so that the trainees can grasp concepts in mathematics and apply English speaking skills in everyday life. Provision of teaching materials continuously has not given maximum results as the service team expected. As a result, it was decided that training needs to be held longer and in-depth to have a significant influence on the mathematical and English language abilities of students who live in the Al-Kamilah foundation. Keywords:Basic Mathematic; English; Industrial Revolution 5.0

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Mataheru, Helena. "PENGEMBANGAN PERANGKAT PMR DAN PENGARUHNYA TERHADAP HASIL BELAJAR MATEMATIKA PADA SISWA KELAS VIII SMP KATOLIK AMBON". Jurnal Magister Pendidikan Matematika (JUMADIKA) 2, n.º 2 (29 de septiembre de 2020): 87–95. http://dx.doi.org/10.30598/jumadikavol2iss2year2020page87-95.

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This study aimed at: 1) producing a valid learning material of realistic mathematic for flat space solid edge material at VIII grade students of SMP Katolik Ambon; 2) finding out the effect of using learning material of mathematic realistic toward learning outcome for flat space solid edge material at VIII grade students of SMP Katolik Ambon. This study was an experiment research initialized by conducting development research to produce learning material oriented to realistic mathematic learning for flat space solid edge material at VIII grade. The development process of learning material followed the procedure of Thiagarajan 4-D model of development that had been modified without dissemination. The results of learning material development with realistic mathematic learning approach were lesson plan, learning material, students’ worksheet and learning outcome test, while the experiment was used to describe the learning effectiveness with realistic mathematic learning approach and to compare learning outcome between students who followed learning process with realistic mathematic learning approach and students who learnt conventionally for flat space solid edge material. The results showed that: 1) learning material with realistic mathematic learning approach for flat space solid edge material had fulfilled the criteria which was show by good expert validation, teachers’ activity in managing learning process, students’ activity, positive responses of teachers and students toward learning material and the average percentage of students learning outcome achieving 79% of whole students in the class; 2) students learning outcome was increased based on analysis of inferential statistic, so it could be concluded that the development of learning material of realistic mathematic affected students learning outcome for flat space solid edge material at VIII grade students of SMP Katolik Ambon

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Siregar, Nella Putriyani y Ella Andhany. "PENGARUH MODEL PEMBELAJARAN NUMBERED HEAD TOGETHER DAN REALISTICS MATHEMATIC EDUCATION TERHADAP KEMAMPUAN BERPIKIR KRITIS DAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA DI SMA NEGERI 11 MEDAN". AXIOM : Jurnal Pendidikan dan Matematika 9, n.º 1 (29 de junio de 2020): 99. http://dx.doi.org/10.30821/axiom.v9i1.7253.

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Abstrak:Penelitian ini bertujuan untuk mengetahui pengaruh kemampuan berpikir kritis dan kemampuan pemecahan masalah matematis siswa yang diajar dengan model pembelajaran Numbered Head Together dan model pembelajaran Realistics Mathematic Education di kelas XI SMA Negeri 11 Medan. Penelitian ini merupakan peneltian kuantitatif dengan jenis penelitian kuasi eksperimen. Populasi penelitian ini adalah seluruh siswa kelas XI SMA Negeri 11 Medan yang terdiri dari 2 kelas dan berjumlah 60 siswa, yang juga dijadikan sampel pada penelitian ini yakni sebagai sampel jenuh. Instrumen tes yang digunakan adalah dengan tes kemampuan berpikir kritis dan tes kemampuan pemecahan masalah berbentuk uraian. Analisis data dilakukan dengan analisis vaian (ANAVA). Hasil temuan ini menunjukkan: 1) Kemampuan berpikir kritis matematika siswa yang diajar dengan menggunakan model pembelajaran Numbered Head Together lebih baik dari pada siswa yang diajar dengan model pembelajaran Realistics Mathematic Education pada materi turunan fungsi; 2)Kemampuan pemecahan masalah matematika siswa yang diajar dengan menggunakan model pembelajaran Numbered Head Together tidak lebih baik dari pada siswa yang diajar dengan model pembelajaran Realistics Mathematic Education pada materi turunan fungsi; 3) Kemampuan berpikir kritis dan pemecahan masalah matematika siswa yang diajar dengan menggunakan model pembelajaran Numbered Head Together lebih baik dari pada siswa yang diajar dengan model pembelajaran Realistics Mathematic Education pada materi turunan fungsi; 4) Terdapat interaksi yang signifikan antara model pembelajaran yang digunakan terhadap kemampuan berpikir kritis dan pemecahan masalah matematika siswa pada materi turunan fungsi. Simpulan dalam penelitian ini menjelaskan bahwa kemampuan berpikir kritis dan pemecahan masalah matematika siswa lebih sesuai diajarkan dengan Model Pembelajaran Numbered Head Together dari pada Model Pembelajaran Realistics Mathematic Education pada materi turunan fungsi. Kata Kunci:Kemampuan Berpikir Kritis, Kemampuan Pemecahan Masalah Matematis, Model Pembelajaran Numbered Head Together, Model Pembelajaran Realistics Mathematic Education Abstract:This study aims to determine the effect of critical thinking skills and mathematical problem solving abilities of students who are taught with the Numbered Head Together learning model and the Realistic Mathematic Education learning model in class XI of SMA Negeri 11 Medan. This research is a quantitative research with the type of research that is quasi experiment. The population of this study was all students of class XI of SMA Negeri 11 Medan consisting of 2 classes and totaling 60 students, who were also sampled in this study as saturated samples. The test instrument used was a critical thinking ability test and a problem solving ability test in the form of a description. Data analysis was performed by analysis of variants (ANAVA). These findings show: 1) The ability to think critically the mathematics of students taught using the Numbered Head Together learning model is better than students taught with the Realistic Mathematic Education learning model on functional derivative material; 2) The ability to solve mathematical problems of students who are taught using the Numbered Head Together learning model is no better than students who are taught with Realistic Mathematic Education learning models on functional derivative material; 3) The ability to think critically and solve mathematical problems of students taught using the Numbered Head Together learning model is better than students taught with Realistic Mathematic Education learning models on functional derivative materials; 4) There is a significant interaction between the learning models used in critical thinking skills and students' mathematical problem solving on functional derivative material. The conclusion in this study explains that the ability to think critically and solve students' mathematical problems is more suitable to be taught with the Numbered Head Together Learning Model than the Realistic Mathematic Education Learning Model on functional derivative material. Keywords:Critical Thinking Ability, Mathematical Problem Solving Ability, Numbered Head Together Learning Model, Realistic Mathematic Education Learning Model

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Salafudin, Salafudin, Muhamad Sugeng Sholahuddin, Heni Lilia Dewi y Alimatus Sholikhah. "Character Education Through Realistic Mathematics Learning Based On Ethnomathematics". Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang 5, n.º 2 (19 de julio de 2021): 211. http://dx.doi.org/10.31331/medivesveteran.v5i2.1623.

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Mathematics is a discipline that can improve thinking skills. However, in reality, the mathematics thinking skills of elementary school students are still low. This is because the mathematics learning used is not optimal and still uses conventional learning. In the process of mathematics learning, there is an integration of character values with mathematics material. Character building through mathematics learning has not been done relatively. The current mathematical concept can be related to cultural activities called ethnomathematics. Through ethnomathematics, mathematics learning becomes more realistic. The purpose of this research is to build students’ character and improve student’s mathematic learning achievement through developing student worksheets with a mathematical approach based on ethnomathematics. The methods of the research were research and development by using steps including preliminary study, design, development, and dissemination. The result of the research is student's worksheets fulfill valid, practical, and effective criteria. The result of the validity of teaching media shows that the average number is 96 % with very good criteria. The effectiveness test shows that there is a distinction of student’s achievement before and after the treatment and the student’s achievement on average is increased. Based on the analysis of student's answers on student worksheets, four characters are built through the learning process with a realistic mathematic approach based on ethnomathematics, such as creativity, independence, curiosity, and nationality. Keywords: character building, realistic mathematics learning, ethnomathematics.

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Yang, Wang, Jing Wang, Yi Liang Zhang y Yang Liu. "Experimental Researches on Relation between Martens Hardness and Traditional Mechanical Properties". Applied Mechanics and Materials 189 (julio de 2012): 205–9. http://dx.doi.org/10.4028/www.scientific.net/amm.189.205.

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For finding the relation between Martens hardness and Vickers hardness, Rockwell hardness, tensile strength, yield strength, research are done on carbon alloy steel by experiment, linear regression analysis and derivation of equation .Martens hardness, Vickers hardness and Rockwell hardness of 30 samples which contains 3 material and 10 hardness levels are tested by ZHU 2.5 hardness tester. On the basis of 180 groups of data obtained and analyzed from instrumented indentation experiments, mathematic model between Martens hardness and Vickers hardness is established, by linear regression analysis. And mathematic model between Martens hardness and Rockwell hardness, tensile strength, yield strength is established on that basis. By means of comparing the value calculated by the mathematic model and obtained from tensile test using Electronic universal testing machine, the accuracy of the mathematic model is verified. The result show that the relative error of the four mathematics models which established in this test is below 5%, and the four mathematics models can be applied to the practical engineering application.

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Adiba, Asfa Riha Farah. "REALISTIC MATHEMATIC EDUCATION (RME) DALAM MENINGKATKAN HASIL BELAJAR SISWA MI DI MALANG". Elementeris : Jurnal Ilmiah Pendidikan Dasar Islam 2, n.º 2 (8 de septiembre de 2020): 47. http://dx.doi.org/10.33474/elementeris.v2i2.8694.

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This study is to find out the learning problems in MI Cemorokandang kedungkandang malang, namely about the problem of low student learning outcomes and students' knowledge of mathematics subjects in class III on multiplication and division material. This study uses a realistic mathematic education learning model. Studying mathematics is including increasing students' knowledge in thinking logically, rationally, critically, carefully, effectively, and efficiently. Therefore, as a teacher must be able to apply effective and efficient learning so students can understand to work on and solve mathematical learning problems. However, the teacher cannot apply it because the teacher does not understand the problems that arise from the model, the media or the characteristics of their students. In this case the researcher will discuss realistic mathematics learning in class III at MI Cemorokandang Kedungkandang Malang, the problems experienced by teachers in mathematics learning are low levels and the problems faced by students in learning mathematics at MI Cemorokandang Kedungkandang Malang

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Istiqomah, May Nisa y Sufyani Prabawanto. "THE DIFFICULTIES OF FIFTH GRADE STUDENTS IN SOLVING MATHEMATIC FRACTIONS WORD PROBLEMS". AL-ASASIYYA: Journal Of Basic Education 3, n.º 2 (19 de junio de 2019): 152. http://dx.doi.org/10.24269/ajbe.v3i2.1835.

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Mathematics is often become the frightening subjects for students. Mathematics is considered as something which is difficult to solve. One of the elementary schools mathematics materials which is considered difficult is fractions. Not only students who consider fractions as difficult material but also teachers admit it as well. Teachers feel difficult in teaching fractions to students. Basic concept of fractions which is difficult for the student to grasp, would become even more complex if it is delivered in the form of word problem. In solving word problems students do not only need mathematic skills but also language skills. This research is aimed to analyze students learning difficulties in solving fractions word problem. This research is a qualitative research. The method of analysis used in this research is Newman method. The results of the research show that students faced difficulties in solving fractions word problems because (1) it is difficult for the students to understand the question and to translate it into mathematical sentence, (2) it is difficult for the students to determine the operation used in the word problems, (3) students are not accustomed to, thus they forget to write the conclusion/write the conclusion without the unit in every answers.

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Haryanto, Loeky, Andi Galsan Mahie, Amir Kamal Amir, Naimah Aris y Kasbawati Kasbawati. "Pembelajaran Matematika Berbasis Komputer Untuk MGMP Matematika SMP Di Kabupaten Pangkajene dan Kepulauan". JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) 3, n.º 1 (27 de marzo de 2019): 100. http://dx.doi.org/10.36339/je.v3i1.194.

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Computers as learning media have become mandatory in the teaching and learning process. Mathematical learning in which the field of study is abstract and requires logical thinking is also inseparable from computer learning media. Many software made to facilitate mathematics learning activities, among others: Geogebra, Microsoft Mathematic, Maple, Matlab, SAS, SPSS etc. The dedication activities have been carried out by the Mathematics Department of FMIPA in collaboration with the Hasanuddin University Research and Community Service Institute (Lp2M) in Mathematics Subject Teacher (MGMP) at the junior high School in Pangkajene and Kepulauan District (Pangkep) held in the Junior High School 4 hall with a number of participants as many as 30 teachers from 23 various junior high schools in Pangkep Regency who are members of the MGMP. The purpose of this activity is to improve the ability of junior high school mathematics teachers in Pangkep Regency to use computer-based learning media such as Maple and Matlab. The material provided was training on Maple and Matlab software to support mathematics learning. The results of this activity can improve the ability of mathematics teachers to master mathematical material assisted by software.

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Heddens, James W. "Bridging the Gap between the Concrete and the Abstract". Arithmetic Teacher 33, n.º 6 (febrero de 1986): 14–17. http://dx.doi.org/10.5951/at.33.6.0014.

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How can teacher help students make the transition from the use of manipulative material to abstract mathematical symbols? Many student have difficulty understanding mathematic because they are unable to make a connection between the physical world and the abstract world.

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Corwin, Rebecca B. y William R. Speer. "IDEAS". Arithmetic Teacher 40, n.º 6 (febrero de 1993): 325–37. http://dx.doi.org/10.5951/at.40.6.0325.

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Many elementary and middle school mathematics teachers use a particular approach when planning mathematics units. We tend to match a mathematics concept that we want to teach with an activity or material that will convey the needed idea. When we teach fractions. we think of planning a pizza party or partitioning a geoboard. When we teach place value, we think of base-ten blocks or trading games. As we increase our teaching and planning repertoires over the year by adding more and more activities and materials, we make better matches among what we think of as basic curriculum elements: the students' needs. the mathematics topic, and choices of activities and materials. These elements, mixed differently year to year, facilitate many good mathematic lessons. But they may also give us a limited view of curriculum possibilities.

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Mulyani, Ai, Eneng Kurnia Nur Indah y Angga Permana Satria. "ANALISIS KEMAMPUAN PEMAHAMAN MATEMATIS SISWA SMP PADA MATERI BENTUK ALJABAR". Mosharafa: Jurnal Pendidikan Matematika 7, n.º 2 (31 de mayo de 2018): 251–62. http://dx.doi.org/10.31980/mosharafa.v7i2.24.

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Penelitian ini bertujuan untuk mengetahui kemampuan pemahaman matematis siswa SMP di Kabupaten Bandung Barat pada materi bentuk aljabar. Subjek terdiri dari 35 siswa. Data yang dikumpulkan berupa hasil tes kemampuan pemahaman matematis, hasil angket siswa, dan dokumentasi. Hasil tes dianalisis sesuai indikator kemampuan pemahaman matematis, yaitu menerapkan rumus dalam perhitungan sederhana dan mengerjakan perhitungan secara algoritmik, mengaitkan satu konsep dengan konsep lainnya dan mampu menerapkan konsep yang telah dipelajari sebelumnya dengan konsep yang terdapat pada bentuk aljabar. Berdasarkan hasil analisis data, bahwa kemampuan pemahaman matematis siswa SMPKabupaten Bandung Barat masih rendah. Hal ini terbukti bahwa siswa tidak dapat menerapkan rumus dalam perhitungan sederhana dan mengerjakan perhitungan secara algoritmik, mengaitkan satu konsep dengan konsep lainnya dan mampu menerapkan konsep yang telah dipelajari sebelumnya dengan konsep yang terdapat pada bentuk aljabar, sehingga siswa kesulitan dalam menyelesaikan soal. Siswa mengalami kesulitan dalam memahami soal, tidak tertantang menyelesaikan soal matematika yang tidak rutin, gugup dalam menjawab pertanyaan tentang materi matematika yang kurang dipahami, ragu-ragu dapat mempelajari sendiri materi matematika yang sulit, tidak dapat menemukan cara baru ketika sulit mengerjakan soal matematika dan menghindari memilih soal latihan matematika yang sulit. This research is aimed to know mathematical comprehension ability of junior high school student in Kabupaten Bandung Barat on the material of algebra. The students consist of 35 students. Data collected in the form of result test of mathematical comprehension ability, student questionnaire result and documentations. The result of test is analyzed according to mathematical comprehension ability indicator, which is applying the formula in simple calculation and doing calculation algorithmically, connecting one concept with another concept and be able to apply concept that has been learned previously with the concept in algebra. Based on data analysis that the ability of junior high school student mathematical comprehension is still low, it is proven that student cannot apply the formula in simple calculation and carry out calculation algorithmically, connecting one concept to another concept in algebra. So, student gets difficulty in doing the cases. Student gets difficulty in understanding question, have no challenge in doing mathematic cases rarely given, be nervous in answering question about mathematic material that is poorly understood, be hesitance in learning for themselves difficulty mathematic material, cannot find a new method while getting difficult to do mathematic question and avoiding to choose the difficult mathematic exercise.

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A'yuni, Dyah Qurrota. "Application of Realistic Mathematic Education And Classroom Assassement Approach Toward Cuboid Materials On The Effectiveness of Learning Outcomes For 5th Grade Students In MI Miftahul Ulum I And II". Hipotenusa : Journal of Mathematical Society 2, n.º 2 (8 de noviembre de 2020): 56–65. http://dx.doi.org/10.18326/hipotenusa.v2i2.56-65.

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AbstractThis thesis discusses the effectiveness of applying the Realistic Mathematic Education (RME) Approach and Classroom Assessment to the learning outcomes of Class V students on cuboids material in MI Miftahul Ulum I and II in the academic year 2019/2020. This study is motivated by the lack of students' understanding of mathematics which is basically closely related to the real things that are around. From the research that has been carried out regarding the effectiveness of the application of the Realistic Mathematic Education (RME) and Classroom Assessment approach to Mathematics learning outcomes of the subject matter of cuboids material of students in class V MI Miftahul Ulum I and II Honggosoco in the academic year 2019/2020, the research was conducted using the method experiment and it can be concluded that, based on data analysis and discussion stated earlier in chapter IV and also based on the average test of one party, then the analysis of learning outcomes based on the average difference test of one party is obtained = 3,832 dan = 2,011. Because tcount ttable, then it is significant and the proposed hypothesis can be accepted. The average learning outcomes of students given teaching by applying the development of a Realistic Mathematic Education (RME) approach and Classroom Assessment is better at 66.64 compared to the average learning outcomes of students given teaching using conventional learning that is 54.92.

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Sari, Ririn Arinta. "PENERAPAN MODEL PEMBELAJARAN AIR DAN RME PADA PEMBELAJARAN MATEMATIKA". Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika 5, n.º 2 (26 de diciembre de 2015): 17–24. http://dx.doi.org/10.36456/buanamatematika.v5i2:.393.

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In the 2013 curriculum requires students to actively observing, ask, reasoning, trying, exploring, and concluding the material provided by the teacher. Many models of learning that can be applied on the 2013 curriculum at the school to improve students’ achievement. In this study, researchers used two different models of learning can improve mathematics learning achievement, namely AIR learning model (Auditory Intellectually Repetition) and RME learning model (Realistic Mathematics Education).Formulation of the problem in this study is whether there are differences in mathematics learning results set of material relations between students taught using AIR learning model (Intellectual Auditory Repetition) and RME leaning model (Realistic Mathematics Education) in seventh grade at SMP Negeri 3 Waru?. While the purpose of this study was to determine whether there are differences in mathematics learning results set of material relations between students taught using AIR learning model (Intellectual Auditory Repetition) and RME learning model (Realistic Mathematics Education) in class VII SMP Negeri 3 Waru.This is an experimental research. In this study takes two classes as a sample. To determine the sample used sampling methods using purposive sampling. The data collection method used the test and documentation method. While the method of data analysis used statistical data analysis using t-test formula. Based on the results of the analysis of the data, obtained tobserve = 3.27 > ttable = 1.99773, so it can be concluded that there are differences in mathematics learning results set of relations material between students taught using AIR learning model (Auditory Intellectually Repetition) and RME learning model (Realistic Mathematic Education) at seventh grade SMP Negeri 3 Waru. Keywords: RME, AIR, The Result of Mathematic

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Hameed, Gulnaz y Intzar Hussain Butt. "Teaching Mathematics at High School: A Comparison of Public and Private School Teachers’ Practices". Global Social Sciences Review III, n.º IV (30 de diciembre de 2018): 127–41. http://dx.doi.org/10.31703/gssr.2018(iii-iv).09.

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This paper compares the mathematics teaching practices of private and public high school teachers in Punjab. Two hundred public and 180 private school teachers were selected by using random sampling technique from district Sahiwal. The quantitative data was collected by using a Likert type 58 questionnaire items. The questionnaire consisted of six parts: mathematic teaching practices, mathematic effective students’ instruction, mathematic resources availability, use of mathematic resources, use of instructional techniques and evaluation techniques used by the teachers. The study indicated that private school teacher teach in cooperative environment, individual concentration, small group discussion and encourage students in mathematic classrooms as compared to public school teachers. They write equations to represent concept and then engage students in problem solving and practice computational skill as compared to public school teachers. Public school teachers highly believe that text book is primary instructional tool for teaching. They practice difficult problem by drill in their classes. Although Public school teachers are well trained, qualified and experienced yet they emphasize rote learning which is a big hurdle in conceptual understanding. Provision of material resources in public schools is high. Mathematic curriculum document, manipulative, measuring devices, and spreadsheets, worksheet calculators, teacher guide and computers as teaching resources are available in public schools. Whereas, helping books and calculators’ availability is better in private schools.

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Purwasih, Ratni, Usman Aripin y Fifiet Dwi Tresnawati Santana. "REALISTIC MATHEMATIC WORKSHEET BAGI GURU-GURU SEKOLAH DASAR". Jurnal Pengabdian Masyarakat Khatulistiwa 2, n.º 2 (29 de noviembre de 2019): 70–77. http://dx.doi.org/10.31932/jpmk.v2i2.547.

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the purpose of this service is to equip CCI IT elementary school teachers to be able to design learning in the classroom using instructional media. The learning media used are realistic mathematical worksheets based on geogebra softwares. LKS is one of the learning tools that must be compiled by the teacher as teaching material that supports the quality of learning. Worksheets that are equipped with visualization of images and students construct their own mathematical concepts through geogebra softwares make abstract concepts more concrete. There is also the purpose of this dedication is to provide training and mentoring to elementary teachers of IT CCI to create ICT-based worksheets and teaching materials assisted by geogebra softwere. This training is a presentation of material related to the demonstration of the use of geogebra softwares for 3D space building concepts and their applications. The next activity is assistance to training participants by dividing up several groups to facilitate further training. Based on the results of the questionnaire satisfaction of 26% increase in the ability of participants from before the training. All participants seemed very enthusiastic in participating in the training program. This can be seen from the presence of all participants starting from the beginning of the activity until the end of the activity. Participants are able to create learning media that construct student’s ability to understand 3D concept

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Trisnawati, Iis, Wulan Pratiwi, Puji Nurfauziah y Rippi Maya. "ANALISIS KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA SMA KELAS XI PADA MATERI TRIGONOMETRI DI TINJAU DARI SELF CONFIDENCE". JPMI (Jurnal Pembelajaran Matematika Inovatif) 1, n.º 3 (23 de mayo de 2018): 383. http://dx.doi.org/10.22460/jpmi.v1i3.p383-394.

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The purpose of this study is to analyze mathematic creatively thinking and analyze students' difficulties in solving the problem of mathematical creative thinking on Trigonometric material in review of self confidence. The subjects of this study were students of class XI MAN Kota Cimahi that consists of 27 students. The method used in this research is descriptive method with qualitative approach. The stage of this research consists of five stages, including: filling self confidence, tests of mathematical creative thinking ability, interviews, analysze and take a conclusions. The results of the research showed that, when that self confidence affect the improvement of mathematical creative thinking in students. The higher self confidence in the students, the curiosity of students will be encouraged and will increase the ability of creative thinking mathematics. Otherwise, if the self confidence in students is lower, than the student's curiosity is less encouraged and this will have an impact to increase the ability to think creative mathematics.

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Sari, Reshita Novita y Tatag Yuli Eko Siswono. "THE DEVELOPMENT OF MATHEMATIC LEARNING MEDIA BASED ON SOCIAL MEDIA INSTAGRAM ON CIRCLE MATHEMATIC IN JUNIOR HIGH SCHOOL". MATHEdunesa 9, n.º 1 (11 de junio de 2020): 120–27. http://dx.doi.org/10.26740/mathedunesa.v9n1.p120-127.

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The development of technology right now is getting more advance, such as social media which is increasingly popular with all group, especially students. Instagram is the most popular social media for students. The existence of Instagram certainly needs to be offset by it usefulness in education, it may be utilizing as a learning media. The research is aimed to develop mathematic learning media based on social media Instagram on circle mathematics used ADDIE development model and result were reviewed in terms of its validity, practically, and effectiveness. The instruments used in this research were validity sheet, material validity sheet, student test sheet, practically sheet, questionnaire, and test. The study only focused on one of eight grader class which has 21 students. Based on the research, the average value of total validity was 3,40 (media expert) and 3,30 (material expert) so that it could be categorized as very valid. This learning media proved practical based on the average value of the practically sheet was 100%. Based on the students’ score sheet, 90,48% students obtainded more than or equal to 75 (Standard Minimum Score) and the average value of student questionnaire was 3,33, so it was concluded that mathematic learning media on social media Instagram was effective. Keywords: development, learning media, Instagram, Circle

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Durri, Agus Ahmad, Hendri Raharjo y Arif Muchyidin. "Applications of Mathematics Charged Islamic Values by Using Macromedia Flash and Camtasia". ITEJ (Information Technology Engineering Journals) 1, n.º 1 (26 de julio de 2016): 16–30. http://dx.doi.org/10.24235/itej.v1i1.2.

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Some factors of low interresting of Mathematic learning material for student on Junior High School grade (SMP/MTs) are design of learning material that is less animation and the difficuties of use the learning material. Therefore, the use of learning material should be inovated for increasing the learners’ interrest, to make them easy understanding the subject that has been learnt, and still capable to increase reigion value in their ownselves. One form of this effort is to create learning material in the form of flash mathematics with consits Islamic value. Flash application is an application that can be developed in accordance animatif developer creativity. The purpose of the research is the developing of learning material in the electric learning form that consists Islamic value in Transformation subject. The method of research is research and development, and the design of the research is using the steps of ADDIE model, there are analysis, design, development, implemetation, and evaluation. Data collection techniques included interviews and observations with research instruments are questionnaires, observation sheets and tests. Further analysis of the data conducted by researchers consists of qualitative and quantitative analysis to determine the feasibility and effectiveness of the teaching materials developed. The results of the expert evaluation consisting of a material expert and a media expert, shows that the average velue obtained from every aspects: content quality and purpose,instructional quality of learning material, aspects of the charge Islamic value, and the technique quality was 4.37 that very good category. The results of the assessment by the teachers of Junior High School grade (MTs) Nurul Huda Munjul which consist of two Mathematics teacher and a teacher of Information and Communication Technology (ICT), shows that the average velue of each aspect was 4.46 with very good category. Than the student quationnaire responses result data obtained by the average velue of each aspects: the quality of learning and instructional, technical aspects of the display, and payload integrition aspects of Islamic value in learning material, namely 3.98, with good categories. The data test scores of student learning outcomes gained an average of 82.34 > KKM (75) with the classical completeness of 89.19% > 85%. The conclusion showed that the quality of Mathematic learning materials charged Islamic velues are developed with macromedia flash and catamsia aplications is feasible and effective to be used in the learning process.

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Gradini, Ega y Firmansyah Firmansyah. "Measuring Students’ Mathematical Literacy in Culturally Responsive Mathematics Classroom". Al-Ta lim Journal 26, n.º 3 (19 de febrero de 2020): 233–42. http://dx.doi.org/10.15548/jt.v26i3.551.

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This paper aims to discuss students’ mathematics literacy in culturally responsive mathematics classroom. Students were taught by culturally responsive mathematics material and examined with a series of test in order to measure their mathematics literacy level. The data collected in this study are quantitative data in the form of scores on students' mathematical abilities that indicate the level of student mathematics literacy. The research was conducted at MAN 1 Takengon with the two groups pre-test and post-test design to determine the differences in mathematical literacy skills of one experimental group and then compare the results with one control group that was not subjected to treatment. The test consists of 6 problems and designed by based on the domain of PISA 2015 questions on every level of mathematical proficiency skills. The research finds that (1) culturally responsive mathematic teaching gives positive effect to students’ mathematical literacy; (2) the level of mathematical literacy of MAN 1 Takengon students lies from level 1 to level 5. There was no student who able to achieve 6thlevel of mathematical literacy; and (3) After culturally responsive mathematics teaching was implemented, from 24 students, there were 4 students at 1st level, 7 students at 2nd level, 10 students at 3rd level, and 2 students at 4th level, and 1 student at 5th level of mathematical literacy.

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Yermakov, Serhii, Taras Hutsol, Oleh Ovcharuk y Iryna Kolosiuk. "Mathematic simulation of cutting unloading from the bunker". Independent Journal of Management & Production 10, n.º 7 (1 de mayo de 2019): 758. http://dx.doi.org/10.14807/ijmp.v10i7.909.

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The peculiarities of cutting movement at unloading them from the hopper are described. The analysis of the scientific researches on bulk materials movement and bridging is given. To develop the mathematical model of cutting unloading the layer should be described as a pseudoliquid, that consists of discrete components (cuttings) and gaseous medium (air). The Navier-Stokes equation can be applied to the process of cutting unloading and velocity field. The equation of pseudoliquid motion is a nonlinear integral and differential equation. The initial and boundary conditions for speed of cutting movement are identified. As a result of research has been theoretically obtained a formula, that evaluates the rate of planting material unloading, the adequacy of which has already been partially tested in experimental experiments carried out by the authors on the way to creating an automatic planting machine.

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Xu, Yi She, Xiong Hua Guo y Hui Mei Kang. "Differential Shear-Compression Theory of Solids Conveying in Vane Extruder". Advanced Materials Research 753-755 (agosto de 2013): 1377–81. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.1377.

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Based on the study of the solids conveying in the vane extruder, a new concept of the differential shear-compression theory is presented. The objective existing of shear and compressive forces is proved by the mathematical method. And the exerted force is proved to be depended on the compression displacement and the differential of compression speed when solid materials are transported in the solids conveying zone of the vane extruder at any moment. Because of the rotor eccentricity to the stator, a conveying mathematical model between the thickness of the material differential laminate and the rotor angle is established. The nonlinear function E(β) andG(β), related to the thickness, density and compactness of materials are obtained through experiment, and the radial force of inner surface of the stator acted on the differential laminate is calculated by the Hooke's law. Based on the torque balance of the material laminate, the force is calculated by integration in the chamber. The finite element analysis of the mathematic model are applied to verify the validity of the differential shear-compression theory, which is also practical to metal material rolling, high pressure double roll crush and other processes with converging geometry.

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Yuniarti, A. P., I. Pramudya y I. Slamet. "Analysis of mathematic creative thinking skill with the material of matrix". Journal of Physics: Conference Series 1796, n.º 1 (1 de febrero de 2021): 012041. http://dx.doi.org/10.1088/1742-6596/1796/1/012041.

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Pu, Feng Shan, Ping Chuan Zhang y Hang Sen Zhang. "Stochastic Material Model and Application System Analysis". Advanced Materials Research 321 (agosto de 2011): 113–16. http://dx.doi.org/10.4028/www.scientific.net/amr.321.113.

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this paper did a profound research on the stochastic material of Electro-optic (EO) polymers and mathematic model, and analyzed the stationary stochastic processes, derived the stochastic process mean and autocorrelation function. Setup a bidirectional diode circuit model as a stochastic system to perform the analysis method. The work done here is very useful for the related subjects such as material analysis, signal processing and system analysis, or linear system design.

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Yanuarto, Wanda Nugroho. "PENINGKATAN KREATIVITAS BELAJAR MATEMATIKA MELALUI PEMBELAJARAN PROBLEM SOLVING". De Fermat : Jurnal Pendidikan Matematika 2, n.º 2 (27 de enero de 2020): 109–15. http://dx.doi.org/10.36277/defermat.v2i2.54.

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The aim of this research’s are : 1) giving opportunity for asking the material what given by the lecturer, 2) giving the alternative how to solve the problem, 3) giving the stimulus of the student for show and understanding the idea, 4) giving the opportunity for see and find the giving solution of problem and 5) giving the stimulus to take the resk. This research is use the Problem Solving Education for increasing the creativity of study math in Mathematic subject in Muhammadiyah University of Purwokerto. And the result of this research’s are : 1) Reaching the knowledge of understanding the material of mathematic, 2) have the skill of show their suggestion and respecting some suggestion of their friends, 3) have the knowledge to see and problem solving to do the exercise of mathematic, 4) have the ability of showing their suggestion, and 5) have the ability to take a resk and improving their ability for solving some problems in mathematic it self.

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Li, Peng Zhong y Wei Min Zhang. "Tool Life Estimation for High-Speed Machining of Composite Material". Advanced Materials Research 143-144 (octubre de 2010): 1075–80. http://dx.doi.org/10.4028/www.scientific.net/amr.143-144.1075.

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Tool life is an important index to judge machinability of cutting tool. Wear standard is a necessary considered factor to give tool life. Microwave printed board is composite material, wear standard should be found by tool wear experiment under definite machining environment. Life-span data of cutting tools with different combination of cutting parameters is collected through machining experiment. And then based 2 mathematic models: extended Taylor empirical equation and quadratic response surface equation, with regression analysis method, the mathematical models of relationship between cutting parameters and tool life were given respectively. Through comparison of two regression methods, response surface equation based wear equation is given, determining calculating method of tool life for High-speed Machining of Aluminum Base Microwave Printed Circuit Board. Described method can be popularized according to change of machining conditions.

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Fleira, Roberta Caetano y Solange Hassan Ahmad Ali Fernandes. "Práticas de ensino para a inclusão de um aluno autista nas aulas de Matemática". Revista Brasileira de Educação em Ciências e Educação Matemática 1, n.º 1 (21 de diciembre de 2017): 104. http://dx.doi.org/10.33238/rebecem.2017.v.1.n.1.18560.

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Resumo: Este trabalho apresenta resultados de uma pesquisa que teve como objetivo analisar as práticas matemáticas de um aluno de catorze anos de idade, com necessidades especiais decorrentes do Transtorno do Espectro Autista (TEA), incluído em uma sala de aula regular de 9°ano. Neste texto, são trazidas reflexões sobre o autismo, algumas considerações teóricas que dão suporte ao estudo e são descritos os procedimentos metodológicos empregados em sete sessões individuais e observações realizadas pela professora e pesquisadora nas aulas de Matemática, nas quais se discutiu o conceito matemático: fatoração de trinômios do segundo grau. No entanto, seguindo as orientações do material didático (apostila), foi necessário trabalhar primeiramente os conceitos de potenciação, radiciação e produtos notáveis. As análises destacam a importância e a influência dos instrumentos mediadores (materiais e semióticos) nas práticas matemáticas do aluno.Palavras-chave: Autismo; Inclusão; Mediação; Práticas Matemáticas. Teaching practices for the inclusion of an autistic student in Mathematics classesAbstract: The project demonstrates the result of a research which had the aim to analyze the practice of mathematic of a student at 14 years old, with special necessities due to the Autism Spectrum Disorder (ASD), included in a ninth grade regular classroom. On this text, reflections about autism, some theoretical considerations that give support to the study and the methodological procedures applied in seven individual sections and the observations done by the teacher and researcher at the mathematics classes, to work the mathematical concept: : factorization of second degree trinomials. However, following the guidelines of the didactic material (apostille), it was necessary to work first on the potentiation concepts, association and remarkable products. The analyzes highlight the importance and the influence of the mediating instruments (materials and semiotics) in the student’s mathematical practices and for their effective inclusion in Mathematics classes.Keywords: Autism; Inclusion; Mediation; Mathematical Practices.

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Zulyadaini, Zulyadaini. "The Development Of Mathematics Learning Media Materials Faculty Of Teaching And Education". Research, Society and Development 9, n.º 5 (19 de marzo de 2020): e03952719. http://dx.doi.org/10.33448/rsd-v9i5.2719.

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Every field of science requires media that is relevant to its field. Teaching material that used is still general, until teaching materials that are specific to the field of science are needed to be effective in their use in learning. The aim of this research is to develop of mathematics learning media materials in faculty of teaching and education in Batanghari University Jambi, this research is using research and development approach (R&D) conducted at FKIP Batanghari University Jambi. The research subjects are 6th semester students 2017/2018. Development model that used is instructional development model (IDM). After the development has been done it needed validation by design expert, material expert, media expert. Then do one to one learner test, small group, and field trial. The result of the research based on validation by the expert is experts categorized as feasible with the percentage of eligibility for design validation 92.71%, media validation 89,78% and material expert 92,5%. It continue with one to one test with percentage 97,2%, small group 93%, and field trial 88,63%. The conclusion from validation result and the test that has been done so the mathematic Learning media materials is properly to used.

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Kuo, Chin-Ya y Hsiao-Han Liu. "Natural Nanoporous Filter Material as a New High-Efficiency Natural Adsorbent to Remove Textile Dyes". Proceedings of Engineering and Technology Innovation 15 (27 de abril de 2020): 16–23. http://dx.doi.org/10.46604/peti.2020.4668.

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The objective of this paper is to perform the innovation design of removing most textile dyes that are harmful to the environment and might induce cancer. However, many methodologies had been developed for various chemical and physical processes to remove different dyes, such as ozone oxidation, electrochemical methods, chemical coagulation, hypochlorite oxidation, and adsorption to remove dyes from wastewater. A novel nanoporous filter methodology and mathematic simulations for adsorption were established as an effective medium for removing dyes from wastewater which was compared to other expensive treatments. The different concentrations of the dye liquid are used as a tester, and the different concentrations of nanoporous adsorbent were added in a uniform distribution and were tested with different time courses and under different temperatures. The final readings were measured by a spectrophotometer and fit into a mathematic model. The result indicates that this nanoporous and natural adsorbents are very good at cleaning the dyes in this system. The fit-in mathematic models could be applied in these tests which can be used in the industrial conditions for a low cost without secondary dye pollutions.

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Qoiriah, Miftahul, Ira Vahlia y Rina Agustina. "Pengembangan Bahan Ajar Realistic Mathematic Education (RME) Bermuatan Higher Order Thinking Skill (HOTS)". Jurnal Pendidikan Matematika Universitas Lampung 9, n.º 1 (30 de marzo de 2021): 42–58. http://dx.doi.org/10.23960/mtk/v9i1.pp42-58.

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This study aims to determine the validity and practicality of RME teaching materials containing Higher Order Thinking Skills (HOTS) on straight line equations in class VIII SMP Negeri 1 Kotagajah. This type of research is development research that uses the 4-D development model, while the stages are Define, Design (Planning), Develop (Development), and Disseminate (Spread) but this stage is not used. The data collection instrument used was a questionnaire. The practicality test was carried out online. Validation of material experts was carried out by two validators, and the results obtained were 81.31% with very valid criteria. design expert validation was carried out by two validators, and the results obtained were 76.02% or were in the valid criteria. The small group trial was conducted by 7 students, and the results of the small group trial were 79.3% or were in practical criteria. Based on the validation process and the small group trial process, RME teaching materials containing Higher Order Thinking Skills (HOTS) on straight line equations material for class VIII SMP Negeri 1 Kotagajah are declared valid and practical.

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Kang, Gui Wen y Fei Hu Zhang. "Research on Material Removal of Magnetorheological Finishing". Key Engineering Materials 329 (enero de 2007): 285–90. http://dx.doi.org/10.4028/www.scientific.net/kem.329.285.

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Magnetorheological finishing (MRF) is a novel precision optical machining technology. Owing to its flexible finishing process, MRF can eliminate subsurface damage, smooth rms micro roughness and correct surface figure errors. The finishing process can be easily controlled by a computer. Material removal model in MRF is established. According to Preston equation in optical machining, mathematic model of material removal rate in MRF rotating at fixed rate is established through hydrodynamic analysis of the MR fluid flow in the polishing zone. The validity of the model is examined by the experimental results.

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Zumberov, Petr, Sergey Kolesov, Vladimir Polyansky y Evgeniy Varshavchik. "Calculating the activation energies of nickel, manufactured using 3D printing technology, with multichannel hydrogen diffusion model". E3S Web of Conferences 121 (2019): 04017. http://dx.doi.org/10.1051/e3sconf/201912104017.

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In modern world more and more materials with extreme properties are being used: high alloys, high-entropy alloys, nanostructured materials, etc. The extreme properties of these materials make them especially sensitive to hydrogen diffusion. Hydrogen can severely impair their properties and cause failures in structures and machines the material is used in. Nowadays, when structures and components are becoming increasingly complex, the use of 3D printing technology is becoming more widespread. Components made using 3D printing technologies are usually layered, which increase the amount of hydrogen that can diffuse into the material. The amount of hydrogen concentration in 3D printed nickel samples has been determined using vacuum heating method in hydrogen analyzer AV-1. The samples were held at different constant temperatures and the total amount of hydrogen extracted at those temperatures was calculated. A mathematic model was developed to evaluate the amount of hydrogen extracted at a given temperature. The evaluation was then compared to the experiment results, and the validity of the mathematical model and the selected hydrogen activation energies was verified.

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Wang, Tan, Haobo Cheng y Honyuen Tam. "Mathematic models and material removal characteristics of multigesture jetting using magnetorheological fluid". Applied Optics 53, n.º 32 (10 de noviembre de 2014): 7804. http://dx.doi.org/10.1364/ao.53.007804.

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Suprayogo, Rofiq, Sutrisno Sutrisno y Supandi Supandi. "Eksperimentasi Pendekatan RME terhadap Prestasi Belajar Matematika Ditinjau dari Motivasi Belajar Siswa". Media Penelitian Pendidikan : Jurnal Penelitian dalam Bidang Pendidikan dan Pengajaran 13, n.º 2 (20 de diciembre de 2019): 189. http://dx.doi.org/10.26877/mpp.v13i2.5103.

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The purpose of this research is to determine the effect of Realistic Mathematic Education on mathematics learning achivement in terms of student motivation. The research design used in this research is Quasi Experimental Design with factorial 2 × 3. Sampling by Cluster Random Sampling technique. The population in this study is all students of class IX in MTS Futuhiyyah 1 Mranggen. The data in this study is obtained from the posttest result of mathematics learing achivement and questionnaire of student motivation. Data processing is done by using anova calculation of two different cell paths followed by scheffe test '. The conclusions of the results of data processing are (1) Student achievement in kesjangunanan material and kekongruenan using learning approach Realistic Mathematic Education provides better learning achievement compared with conventional approach, (2) highly motivated students have better learning achievement than low motivated students, and students with moderate motivation have better learning outcomes than students with low motivation, and (3) there is no interaction between learning models with student motivation on student achievement.

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Lestari, Fida, Asep Sukenda Egok y Riduan Febriandi. "Pengembangan Bahan Ajar Matematika Berbasis Problem Based Learning Pada Siswa Sekolah Dasar". Jurnal Basicedu 5, n.º 1 (4 de enero de 2021): 394–405. http://dx.doi.org/10.31004/basicedu.v5i1.628.

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This study aims to develop teaching materials based on Mathematics Based Problem-Based Learning in fifth grade students of SD 37 Lubuklinggau in accordance with the 2013 curriculum and to produce valid and practical teaching materials for use in learning. This research is a development study with a development model adapted from the Four-D model. Based on the results of the analysis Based on the experts, namely: linguists, material experts, and media experts determine statistical teaching materials based on problem-based learning criteria meet the criteria with an average score of 0.76. Based on the analysis of teacher and student worksheets consisting of 9 people obtained from problem-based learning based statistical teaching materials meet the requirements with an average score of 95%, so that learning materials can be improved based on statistical problems Problem Based Learning requires valid, practical criteria and can be used in learning. Keywords: Development, Mathematic Teaching Materials, Problem Based Learning

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Sriningsih, Riry, Dewi Murni y Helma Helma. "PENINGKATAN KETERAMPILAN GURU SEKOLAH DASAR MENGGUNAKAN MEDIA INTERAKTIF UNTUK MATERI GEOMETRI DAN PECAHAN". Pelita Eksakta 1, n.º 1 (8 de marzo de 2018): 15. http://dx.doi.org/10.24036/pelitaeksakta/vol1-iss1/4.

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Based on observations, questionnaires and discussions with some of teacher of elementary school found many problems geometric and fraction material. The problems are: 1. In general, teachers have not used interactive media in explaining mathematic materials, so students are difficult to understand the subject, 2. Teachers have not yet facilitated various learning styles of students, 3. Students' assumptions on difficult mathematical subjects (full of numbers and symbols), so they are phobic with math, 4. Teachers urgently need the consolidation of geometrical and fraction materials through the creation of interactive media that match the material and characteristics of students, 5. Teachers desperately need training on how to design and create interactive media that can interest students to learn on geometry and fraction materials, so that students are no longer fobs with math and can easily understand the material well, 6. Teachers desperately need training on the use / utilization of interactive media that has been created in teaching the geometry and fraction materials. To solve the problem, team try to provide solutions to these problems by providing training on how to design, create and use interactive media especially plane geometry and fraction. The result of training, teachers are already able to design and make interactive media. They can explain plane geometry and fraction material easily, especially how to find the formula of area for instance rectangle, triangle, trapezium, etc. Further impact, students more easily understand the material well.

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Hendri, Sherlyane y Ary Kiswanto Kenedi. "ANALISIS PENDAHULUAN PENGEMBANGAN BAHAN AJAR MATEMATIKA BERBASIS DISCOVERY LEARNING PADA MATERI PECAHAN UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH SISWA KELAS V SD". JURNAL INOVASI PENDIDIKAN DAN PEMBELAJARAN SEKOLAH DASAR 2, n.º 2 (31 de diciembre de 2018): 78. http://dx.doi.org/10.24036/jippsd.v2i2.102707.

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Students’ problem solving ability at any school is still in low category. That is due to student weakness to understand any mathematical problems that linked to the real life around them. One of any cause of this problem is mathematics lesson equipments development and its utilization by teacher are not optimal yet. To solve this problem, mathematics teachers should develop mathematics lesson equipments based on discovery learning for class V student at Elementary school that sutisfied validity, practicality, and efectiveness criteria. This is a development research with 4D models consisting of Define, Design, Develop, and Disseminate. In preliminary research for Define stage, researcher takes analysis of needs, analysis of curiculum, and analysis of mathematic concepts. Techniques of data collection through interview with teacher mathematics, questionnaire learners, curriculum analysis. Based on the analysis found that the needs of learners in the form of new learning model in addition to conventional learning are better able to increase problem solving ability of able to improve students' problem solving abilities to achieve desired goals and then designed a mathematics teaching material based on discovery learning.Keywords : Problem solving ability, Discovery Learning, 4-D model

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Li, Yu Ming y Tao Yuan. "Research on Electromagnetic Shielding Efficiency of Metal Rubber Material". Advanced Materials Research 881-883 (enero de 2014): 1061–64. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.1061.

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Beginning from the manufacture process of metal rubber material, the structure and electromagnetic shielding mechanic were studied. Based on the flange coaxial test, the shielding efficiency of metal rubber samples was measured and the mathematic model of electromagnetic shielding efficiency was deduced. Using Schelkunoff formula the number and fitting curve of shielding efficiency were got. It can be concluded as a new kind of functional material, the metal rubber material would be widely used in the field of electromagnetic shielding and packing.

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45

Hajar, Yuni, Ridwan Yanwar y Aflich Yusnita Fitrianna. "ANALISIS KEMAMPUAN BERPIKIR REFLEKTIF SISWA SMP DITINJAU DARI DISPOSISI MATEMATIS SISWA". JPMI (Jurnal Pembelajaran Matematika Inovatif) 1, n.º 1 (17 de enero de 2018): 79. http://dx.doi.org/10.22460/jpmi.v1i1.p79-92.

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Reflective thinking ability and mathematical disposition in mathematics learning is very important to be improved. Reflective thinking ability can help students to get more optimal learning outcomes and mathematical disposition is required by students to solve a mathematical problem. The purpose of this study is to analyze the difficulties faced by junior high school students in working on the problem of reflective thinking ability that review based on students' mathematical disposition ability. The research method used is descriptive analysis method to analyze the available data and processed so as to obtain a clear description of the facts and the relationship between the phenomena studied. The sample in this research is the students of class IX B in SMPN 5 Cimahi. The results of this study is that almost allindicators ofreflective thinking abilityare still not achieved review bases on student’smathematical disposition. this is due to the following factors : (a) mathematic material that is still poorly understood so that students have difficulty when solving difficult mathematical problems ; (b) student made a mistake in concept when do reflective thingking ability test; (c) the student has never experienced a test with reflective thinking ability before.

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46

Sokolov, V. L. y A. A. Fomin. "Diagnostics Experience of Comprehensive School Pupils’ Meta-subject Competences (on the Mathematic Material)". Psychological-Educational Studies 8, n.º 4 (2016): 174–84. http://dx.doi.org/10.17759/psyedu.2016080417.

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introduction of the new educational standards of fundamental general education. The experiment of diagnostics implementation of competences among 5-6th graders aged 10-15 is being observed. Tasks instances are presented, particularly of the ones based on mathematic content. Diagnostic tasks construction models are offered alongside with detailed comments to each of them. The approbation results of 340 tested individuals (students of various educational institutions) are adduced with comments. Authors ascertain the scatter of readings in tasks completion results; substantiate the hypothesis of usage possibility of diagnostics materials for different grade student in school. This article will be of interest to teachers and psychologists, dealing with the issue of diagnostics organization meta-subject competences among comprehensive school pupils.

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Zhang, Lan, Ze Sheng Lu, Qing Xin Meng, Li Quan Wang y Hai Xia Gong. "Experimental Research on Diamond String Bead Wire Cutting the Steel-Based Material". Key Engineering Materials 419-420 (octubre de 2009): 545–48. http://dx.doi.org/10.4028/www.scientific.net/kem.419-420.545.

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Diamond wire saw was a tool which is used to cut the steel-based material, its grinding mechanism was researched in the paper. Based on technical characteristic of the diamond wire, a string of diamond beads in the cutting moment was detected by using the electron microscope. Wear figuration and invalidation reason of the diamond beads was analyzed, and mathematic relation among wear rate, feed velocity and cutting velocity of the diamond wire were educed, and reasonable cutting parameters were received. In order to validate the mathematic model, the experiment was finished. When the diamomd wire saw is used to cut the steel-based material, its two experiential formulas of radial feed force and tangent cutting force are educed by using the orthogonal regression method. In the formula, radial force and cutting force is increasing with augment of the workpiece breadth, ridial feed velocity and cutting velocity, and influence of the workpiece breadth to the cutting force is more than to the radial force. Meanwhile, experiment show yet that error between theory cutting(or feed) force and actual cutting(or feed) force is in the reasonable scope.

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Manullang, Febriani Rotua, Miftha Indasari y Pranita Yuliana. "DEVELOPMENT OF MATHEMATIC MATERIALS BASED ON ETOPAPA (ETHNOMATEMATICS IN TOURISM OBJECTS OF PALEMBANG CITY)". DWIJA CENDEKIA: Jurnal Riset Pedagogik 2, n.º 2 (31 de diciembre de 2018): 46. http://dx.doi.org/10.20961/jdc.v2i2.26304.

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This study aims to develop ETOPAPA-based mathematics teaching materials for elementary school students. Product trials were conducted using a pretest-posttest experiment group design. Data analysis techniques were carried out with item response analysis and t test. Validation test results on the feasibility of ETOPAPA-based mathematics teaching materials are in the very good category with a score of 4.45. Analysis of the effectiveness of ETOPAPA-based mathematics teaching materials was carried out on the experimental class (E) and control class (K). Based on calculations obtained E>K, with an average N-gain score of 0.64. The score is included in the interpretation of the medium category (0.3≤ g ,7 0.7). Based on these calculations, the application of ETOPAPA-based mathematics teaching materials was declared effective. The results of the practicality test of ETOPAPA-based mathematics teaching materials are in the practical category with a positive response and 85.02% student response. Based on the results of the analysis, it can be concluded that, learning flatter material using ETOPAPA based mathematics teaching materials at SDN 128 Palembang is valid, effective, and practical.

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Septiana, Intan Tri, Okto Wijayanti y Arifin Muslim. "Penerapan Model Problem Based Learning (PBL) untuk Meningkatkan Prestasi Belajar Matematika pada Siswa Kelas V Sekolah Dasar". Media Penelitian Pendidikan : Jurnal Penelitian dalam Bidang Pendidikan dan Pengajaran 13, n.º 1 (30 de junio de 2019): 14. http://dx.doi.org/10.26877/mpp.v13i1.5084.

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The background of this reseach was the low learning achievement of the students in mathematic subject at the fifth grade in elementary school. The aim of the study was enhancing the mathematic learning achievement in a learning material of data presentation through Problem Based Learning (PBL) model. The subject of this reseach was the fifth grade students that was 22 students, which 11 of them were male and 11 others were female. This researchused classroom action reseach design which was proposed by Kemmis and Taggart. This reseach was done in two cycles. Each cycle involved two meetings,which took 2 x 35 minutes. The instruments to collect the data were test and non-test. The result showed that the steps to implement Problem Based Learning (PBL) model were: (1) orienting the problem, (2) organizing students to learn, (3) guiding students (individual and group) to conduct investigation, (4) presenting the result or discussion, (5) analyzing and evaluating the problem solving. Based on the observation on the learning process both on cycle I and on cycle II, the data showed that the students’ mathematic achievement in the data presentation material was improved. The percentage on the cycle I was 43.75%, which gets enough criteria and on the cycle II was 86,36%, which gets very good criteria. The percentage of students’ learning achievement has achieved the indicator of success that has been determined, which was 80%. This leads to the conclusion that the implementation of problem based learning (PBL) model was able to enhance the mathematic learning achievement in a learning material of data presentationat the fifth grade in elementary school.

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Tiurma Manurung, Rosida, Ainna Amalia, Anik Vega Vitianingsih, Swaditya Rizky y Eko Susanto. "Multimedia Flash Basic Mathematic Learning for Primary School". International Journal of Engineering & Technology 7, n.º 2.13 (15 de abril de 2018): 464. http://dx.doi.org/10.14419/ijet.v7i2.13.18142.

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The development of education world at this time no doubt has entered a new era, namely the era of global economy, and the era of science and information in various fields including in the field of education that gave birth to the concept of e-learning. The learning process is the result of the synergy of the three main components of learning, namely learners, teacher competence, and learning facilities and from these three components then the learning of mathematics algebra will be more meaningful and appealing to students if teachers can convey and present issues more easily understood and close to the daily life of students by providing material in the form of animated multimedia designed using Adobe Flash CS6.

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