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Journal : Journal of Math Tadris (jMt)

Profil number sense siswa berprestasi pada materi pecahan Hidayati, Nurul; Al Kusaeri, Al Kusaeri; Mahfudy, Sofyan
Jurnal of Math Tadris Vol 1 No 1 (2021): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (471.029 KB) | DOI: 10.55099/jmt.v1i1.4

Abstract

Kepekaan bilangan (number sense) merupakan aspek yang harus dikuasai dengan baik oleh setiap siswa yang belajar matematika, sebab dapat membantu pemahaman mereka terhadap makna bilangan dan operasinya dengan lebih baik. Di sisi lain, siswa berprestasi di sekolah terkadang memiliki kemampuan matematika yang kurang baik. Penelitian ini bertujuan untuk menganalisis dan mendeskripsikan profil number sense siswa berprestasi pada materi pecahan kelas VII sekolah menengah pertama. Penelitian ini menggunakan pendekatan kualitatif jenis deskriptif. Pengambilan subjek menggunakan teknik purposive sampling, dengan jumlah subjek 3 siswa berprestasi di kelas VII. Instrumen soal tes number sense (TNS) dan pedoman wawancara dikembangkan peneliti. Prosedur pengumpulan data menggunakan tes dan wawancara. Analisis data menggunakan tiga tahap menurut teori Miles dan Huberman dengan mengacu kepada setiap komponen number sense beserta indikatornya. Hasil penelitian ini menunjukkan bahwa kemampuan number sense siswa berprestasi di sekolah menengah pertama pada materi pecahan cukup baik, terutama pada aspek memahami konsep bilangan, representasi urutan bilangan, perhitungan, dan strategi menghitung. Namun demikian, beberapa indikator number sense belum terpenuhi, yaitu menunjukkan pecahan yang terdapat di antara dua pecahan serta menggambarkannya pada garis bilangan. Siswa berprestasi juga belum baik dalam hal pengoperasian bilangan dan pernyataan yang setara
Metakognisi siswa dalam pemecahan masalah matematika ditinjau dari gaya belajar Roni Irwansyah, Roni Irwansyah; Sofyan Mahfudy, Sofyan Mahfudy
Jurnal of Math Tadris Vol 1 No 2 (2021): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (790.839 KB) | DOI: 10.55099/jmt.v1i2.32

Abstract

The purpose of this study was to describe students' metacognition in solving mathematical problems in terms of learning styles. The method in this research is descriptive qualitative. The subjects in this study were students. Data collection techniques used are questionnaires, tests and interviews. The analysis technique used consists of three components, namely data reduction, data presentation, and drawing conclusions. The results of this study indicate that there are differences in students' metacognition processes, namely: a) The metacognitive process of visual students is moderate. It can be seen when students plan, use information from problems to answer questions well. When monitoring, students check the information obtained when solving a given problem. When evaluating, students are incomplete in writing the final results at the conclusion. b) The process of auditory students' metacognition is lacking. It can be seen when students plan, do not draw and write down the information provided. When monitoring, students check the information obtained when solving a given problem. When evaluating, students re-check the completion that has been done but the final result is incomplete. c) High kinesthetic students' metacognition process. It can be seen when students plan, explain and write down what is in the problem, describe and write down what is known and asked about the problem. When monitoring, students choose the concept of completion correctly, apply the information obtained to concepts that have been thought out and are thorough in answering questions and believe that the answer process is correct. When evaluating, accuracy in writing the final results that have been done rightly and correctly.
Etnomatematika: Eksplorasi Objek Dan Aktivitas Matematika Pada Bentuk Jajanan Tradisional Masyarakat Lombok, Indonesia Rahmasari , Aulia; Al Kusaeri , Al Kusaeri; Mahfudy, Sofyan
Jurnal of Math Tadris Vol 2 No 1 (2022): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55099/jmt.v2i1.41

Abstract

This study aims to determine the traditional snacks of the Sakra community, the mathematical objects contained in the traditional snacks of the Sakra people, and the mathematical activities contained in the process of making and selling traditional snacks of the Sakra people. In this study, the researcher used a qualitative approach with an ethnographic type of approach. This research was conducted in Sakra District, East Lombok Regency, NTB, especially in the area of ​​Sakra traditional snack traders. Based on the results of the analysis of the discussion in this study, it can be concluded that temerodok and jaje kaok are traditional snacks from Sakra village. These two snacks have an important role in the customs of the Sakra community and also in helping the economy of the Sakra village community. The results of the identification of the traditional forms of the Sakra people's snacks (temerodok and jaje kaok) can be concluded that there are mathematical objects in these two snacks, namely crescent moons, ellipses, parabolic curves, and rectangles and blocks. And based on the results of the analysis of the Sakra community's activities in making traditional snacks, forms/patterns of snacks and in the process of selling traditional snacks, it can be concluded that there are mathematical activities in the two traditional snacks, namely counting activities, measuring activities, designing activities, and explaining activities.
Identifikasi kesulitan siswa dalam memecahkan masalah geometri berdasarkan tingkatan berfikir Van Hiele Mahfudy, Sofyan; Afriana, Hanna
Jurnal of Math Tadris Vol 4 No 2 (2024): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55099/jmt.v4i2.163

Abstract

Several previous studies have shown students' low achievement in learning Geometry. However, the diversity of students' abilities affects their perspectives and ways of thinking in the learning process. Investigation of students' difficulties in solving Geometry problems based on their level of thinking is necessary to gain actual knowledge. Identifying student difficulties will help the teacher design effective lessons to address these issues. This research aims to identify and describe students' difficulties in solving geometry problems based on Van Hiele's level of thinking. This study used a qualitative approach with data analysis that entailed data reduction, data presentation, and conclusion. The subjects of this study were 3 students in the second academic year in junior high school who were purposively selected from 15 students who participated in the Van Hiele thinking levelling test. The results show that the stage of Van Hiele's thinking that students have achieved was Level 2 (informal conclusion). Students with Level 0 of thinking tend to have difficulty on understanding the concept of area of geometric shapes and unable to develop problem solving steps. Meanwhile, students at Level 1 had difficulty in obtaining alternative solutions to the problem of the concept of the area of geometry.
Pengaruh Penerapan Realistic Mathematic Education berbantuan GeoGebra terhadap Kemampuan Berfikir Kreatif Siswa di Sekolah Menengah Pertama Islam Tarbiyatusshibyan Hadi, Sopian; Andriani, Parhaini; Mahfudy, Sofyan
Jurnal of Math Tadris Vol 5 No 1 (2025): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55099/jurmat.v5i1.189

Abstract

This study aims to determine the effect of the implementation of the Realistic Mathematics Education (RME) model assisted by GeoGebra on the creative thinking skills of junior high school students. The study used a quantitative approach with a posttest-only control group design. The subjects of the study were grade VIII students at SMP Islam Tarbiyatusshibyan Beremi who were divided into two groups, namely the experimental class that received learning with the RME model assisted by GeoGebra and the control class that used conventional learning. The instrument used was a descriptive test of mathematical creative thinking skills. The results of data analysis showed that there was a significant difference between the creative thinking skills of students in the experimental class and the control class. This shows that the implementation of RME assisted by GeoGebra has a positive effect on improving students' creative thinking skills. Thus, the RME learning model assisted by GeoGebra can be an effective alternative in improving the quality of mathematics learning at the junior high school level