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USING GEOGEBRA IN TEACHING PLANE VECTOR Tommy Tanu Wijaya
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 3, No 1 (2020): VOLUME 3 NUMBER 1, MARCH 2020
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v3i1.p15-23

The study of geometry knowledge is an important component of high school mathematics. Plane geometry is the main thread that runs through high school geometry knowledge. Vector learning is the focus and difficulty of plane geometry. When students encounter a new knowledge, it will be difficult to overcome it, and it is difficult to form a new logical system in their minds. Therefore, when students learn the content of vectors, they will have cognitive conflicts at different levels of thinking. The calculation from planar geometry to directed line segments needs a transition. It is difficult to understand the concept and nature of vectors without the help of teachers. This study attempts to guide the application of Geogebra software in teaching plane vector by using Van Hill Theory to intuitively display abstract geometric knowledge, and guide students to perform dynamic operations and deductive reasoning , Gradually help students transition from point to surface to vector operation, improve classroom teaching efficiency, and thereby optimize geometry teaching, in order to provide some reference for front-line teachers.

Analysis On High School Students’ Mathematical Creative Thinking Skills on The Topic Of Sets Sri Islami Kulsum; Tommy Tanu Wijaya; Wahyu Hidayat; Jessica Kumala
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 3 No 2 (2019): Jurnal Cendekia: Jurnal Pendidikan Matematika
Publisher : Mathematics Education Study Program

The purpose of this research is to find students’ mathematical creative thinking skills on solving mathematical problems by using several indicators. This study was conducted in 1st Pasundan High school in Cimahi. The data analysis that would be use is the quantitative and qualitative descriptive analysis. The subject of this research are the 10th grade 2nd science students with a total of 22 students. The result of this research that is obtained from the fluency and flexibility indicator is in the low category with a percentage score of 56.8%, with an average of 2.27. When using the originality and elaboration indicator, it was also in the low category with a percentage score of 20.4% and 38.6% and average score of 0.81 and 1.54 respectively.

Measuring Mental Model of Primary Teachers and Pre-service Teachers on Heat Transfer Concept Neni Hermita; Tommy Tanu Wijaya; Zetra Hainul Putra; Novi Yani Yora; Andi Suhandi
AL-ISHLAH: Jurnal Pendidikan Vol 13, No 1 (2021): AL-ISHLAH: JURNAL PENDIDIKAN
Publisher : STAI Hubbulwathan Duri

This study compares primary teachers' mental models with pre-service primary school teachers' mental models on the heat transfer concept. The mental model categories reviewed in this study include scientific, synthetic, and initial. This study's method was descriptive quantitative method, with research subjects 40 primary teachers and 40 pre-service primary teachers. This study's instrument is a conceptual understanding test consisting of three parts of a statement that asks for an explanation and description. The results showed that in understanding concepts test in synthetic mental models, 32.5%. In the category of initial mental models, there is a comparison of 32.5%. While in the concept of convection, there is a comparison of 2.5% in the scientific category. For synthetic mental models' category is 5%. In the category of initial mental models is 7.5%. For the concept of radiation, there is no comparison in the category of scientific mental models. Next there is a comparison of 7.5% in the category of synthetic mental models. In the category of initial mental models is 7.5%. Generally, elementary school teachers and students are in synthetic mental models and the initial mental models' category.

Analisis Miskonsepsi Siswa SD pada Materi Gaya dan Gerak Rizki Halimah Nasution; Tommy Tanu Wijaya; M. Jaya Adi Putra; Neni Hermita
Journal of Natural Science and Integration Vol 4, No 1 (2021): Journal of Natural Science and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jnsi.v4i1.10851

This research is to find out and describe elementary students misconception on the concept of force and motion. Data collection methods using tests in the form of four tier tests and interviews. Sampling techniques through saturated sampling is applied to obtain students who will be examined throughbout the fifth grade of SDN 147 Pekanbaru. The research data were analyzed using descriptive quantitative analysis. The results showed that elementary students misconceptions could be categorized as “medium” with an average of 54,29% or totaling 76 students from 140 students studied. The bighest misconception on the concept spring force with a misconception of 75% or a total of 105 students from 140 students studied. The lowest misconception on the concept of the influence of force on the motion of objects with a misconception of 19,29% or a total of 27 students from 140 students studied. Comparison of the percentage of misconceptions of male and female students on the concepts of force and motion included in “medium category”, with an average percentage of misconceptions that occur in male students by 51,56% and female students by 51,31%. The factors causing the occurrence of misconceptions in students come from students, the context and teaching methods.Keywords: misconceptions, the force and motion, elementary studentsABSTRAK Penelitian ini bertujuan untuk mengetahui dan mendeskripsikan miskonsepsi siswa sekolah dasar pada materi gaya dan gerak. Metode pegumpulan data menggunakan tes berupa four tiet test dan wawancara. Teknik pengambilan sampel melalui sampling jenuh yaitu seluruh siswa kelas V SDN 147 Pekanbaru. Data hasil penelitian dianalisis menggunakan analisis kuantitatif deskriptif. Hasil penelitian menunjukkan bahwa miskonsepsi yang terjadi pada siswa sekolah dasar termasuk dalam kategori miskonsepsi “sedang” dengan rata-rata 54,29% atau berjumlah 76 siswa dari 140 siswa. Miskonsepsi tertinggi pada sub indikator terkait gaya pegas dengan miskonsepsi sebesar 75% atau berjumlah 105 siswa dari 140 siswa. Miskonsepsi terendah pada sub indikator pengaruh gaya pada gerak benda dengan persentase miskonsepsi sebesar 19,29% atau berjumlah 27 siswa dari 140 siswa. Perbandingan persentase miskonsepsi siswa laki-laki dan perempuan pada materi gaya dan gerak termasuk dalam kategori “sedang” dengan rata-rata miskonsepsi yang terjadi pada siswa laki-laki sebesar 51,56% dan perempuan sebesar 51,31%. Faktor penyebab terjadinya miskonsepsi pada siswa berasal dari peserta didik, konteks dan metode mengajar. Kata kunci: miskonsepsi, gaya dan gerak, siswa sekolah dasar

Analisis Buku Siswa Matematika SMA dari Indonesia dan China Pada Materi Peluang dan Statistik Aditya Purnama; Tommy Tanu Wijaya; Senja Noviani Dewi; Zulfah Zulfah
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 4 No 2 (2020): Jurnal Cendekia: Jurnal Pendidikan Matematika
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v4i2.305

Buku pelajaran menjadi salah satu peranan penting dalam meningkatkan kemampuan matematis dan hasil belajar siswa. penelitian ini bertujuan untuk menganalisis konten pada buku cetak yang banyak dipakai di Indonesia dan china. Objek pada penelitian ini adalah materi peluang dan statistik pada SMA kelas 12. Metode penelitian yang dipakai pada penelitian ini adalah deskriptif kualitatif. Textbook dianalisis dari beberapa aspek penting seperti susunan materi peluang dan statistic, pembagian jam mata pelajaran dan analisis yang dilakukan pada soal latihan. Hasil pada penelitian ini menunjukkan bahwa jam mata pelajaran di Indonesia lebih banyak 14 jam mata pelajaran dibanding di china. Susunan materi peluang dan statistik di Indonesia lebih banyak di banding susunan materi peluang dan statistic di Indonesia. Jumlah soal latihan pada Indonesian textbook lebih banyak dibanding chinese textbook. Tetapi jumlah type soal applying dan reasoning pada chinese textbook lebih banyak dibanding Indonesia textbook. siswa di Indonesia terbiasa dengan banyak latihan soal. Sedangkan siswa di china lebih fokus pada poin-poin penting dan meningkatkan kemampuan high order thinking (HOT) siswa. diharapkan penelitian ini dapat menjadi bahan pertimbangan pada penyusunan textbook pada kurikulum selanjutnya pada dua Negara.

A Comparative Study on The Comprehensive Difficulty of Junior High School National Examination Tommy Tanu Wijaya; Ying Zhou; Zongzhao Mo; Xiaohong Wu
Journal on Education Vol 2 No 4 (2020): Journal on Education: Volume 2 Nomor 4 Tahun 2020
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v2i4.334

Mathematics’ National examination is conducted annually in all countries. Including Indonesia and China. but there are only a few researchers who make observations about the difficulty of the national exams in each country. There is not even a paper comparing the national exams in 2 countries. So in this study, This article compares the comprehensive difficulty of the Nanjing and Nanning test mathematics’ National examination questions from the five difficulty factors of background factors, cognitive level, reasoning ability, calculation level, and knowledge content. The method in this research is a mix method, using qualitative and quantitative for maximum data analysis results. The results show that, in terms of background factors, the test questions of Nanning paper The comprehensive difficulty is higher than that of the Nanjing paper. In the other four factors, the comprehensive difficulty of the Nanjing paper is slightly higher than that of the Nanning paper. The comprehensive difficulty coefficient of the two sets of test papers is slightly larger in terms of the calculation level and the cognitive level. The set of test papers basically maintains a balance of difficulty in the five factors. Based on the results of the research.

MEASURING STUDENT’S LOGICAL REASONING SKILLS OF CHINESE SENIOR HIGH SCHOOL USING RASCH MEASUREMENT MODEL Lijuan Gan; Tommy Tanu Wijaya
JURNAL MathEdu (Mathematic Education Journal) Vol 4 No 3 (2021): JURNAL MathEdu (Mathematic Education Journal) vol. 4 No. 3 November 2021
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v4i3.3247

This study aims to develop an evaluation tool to evaluate the overall logical reasoning core literacy skill and understand the differences in logical reasoning skills between students of different classes and genders. The quality of the developed evaluation tool is tested and optimized based on the Rasch model. The measured sample data are processed and analyzed by winsteps software and SPSS software. 122 senior three students from different classes were evaluated by the developed logical reasoning literacy level evaluation tool with good reliability and validity. It was found that the overall logical reasoning skills of senior high school students was concentrated in Level II, and some students could reach Level III; there are obvious differences in the level of logical reasoning skills between the experimental class and the ordinary class. The overall level of the experimental class is higher than that of the ordinary class; there is little difference in the distribution of male and female at the low level, but compared with male, female' literacy Level Is obviously limited after reaching a certain level, so it is difficult to break through and rise to the third level.

MEASURING STUDENT’S LOGICAL REASONING SKILLS OF CHINESE SENIOR HIGH SCHOOL USING RASCH MEASUREMENT MODEL Lijuan Gan; Tommy Tanu Wijaya
JURNAL MathEdu (Mathematic Education Journal) Vol 4 No 3 (2021): JURNAL MathEdu (Mathematic Education Journal) vol. 4 No. 3 November 2021
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v4i3.3247

This study aims to develop an evaluation tool to evaluate the overall logical reasoning core literacy skill and understand the differences in logical reasoning skills between students of different classes and genders. The quality of the developed evaluation tool is tested and optimized based on the Rasch model. The measured sample data are processed and analyzed by winsteps software and SPSS software. 122 senior three students from different classes were evaluated by the developed logical reasoning literacy level evaluation tool with good reliability and validity. It was found that the overall logical reasoning skills of senior high school students was concentrated in Level II, and some students could reach Level III; there are obvious differences in the level of logical reasoning skills between the experimental class and the ordinary class. The overall level of the experimental class is higher than that of the ordinary class; there is little difference in the distribution of male and female at the low level, but compared with male, female' literacy Level Is obviously limited after reaching a certain level, so it is difficult to break through and rise to the third level.

The Empirical Research of Hawgent Dynamic Mathematics Technology Integrated into Teaching Fraction in Primary School Tommy Tanu Wijaya; Zhou Ying; Aditya Purnama
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 4 No 1 (2020): Jurnal Cendekia: Jurnal Pendidikan Matematika
Publisher : Mathematics Education Study Program

STEAM education that is under ICT has become an upsurge in the international education of research and practice. Due to this, there is a wide application of information technology that has a profound impact to mathematics education. Based on the multiple representation of mathematics, this research aims to test the effectiveness of Hawgent dynamic mathematic software in teaching mathematics to primary students. The sample of this study are all the primary students in Bandung and this research uses the test and non-test method. The test method is a quantitative test to know the students’ mathematical understanding ability when using Hawgent and traditional teaching method. The data collected from the test method would be the post-test scores and the scores are both from the experimental and controlled class. The data will then be process by using SPSS 22 and Microsoft Excel. The data is then analyzed by using the t-test statistic. The result of this study concludes that the students’ understanding ability whose learning are supported by Hawgent are better than whose learning are using the traditional teaching method.

Using VBA Learning Media To Improve Students’ Mathematical Understanding Ability Tommy Tanu Wijaya; Zhou Ying; Liu Cunhua; Zulfah Zulfah
Journal on Education Vol 2 No 3 (2020): Journal On Education: Volume 2 Nomor 3
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v2i3.314

Trigonometry is one of the basic of mathematics that is taught in high school. Students always thinks that trigonometry is a hard theory and this research aims to overcome the students’ problems by using VBA learning media base on the 6-question cognitive theory. This research will use the experiment method with a pre-test and post-test to see the difference on the students’ mathematics understanding ability that uses VBA learning media based on the 6-question cognitive theory and the one that uses traditional teaching method. The result of this research is that there is a difference and an increase in the students’ mathematics understanding ability that uses VBA learning media base on the 6-question cognitive theory compared to the students who uses traditional teaching method.

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