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Journal : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA)

Penerapan Model Pembelajaran Kooperatif Think Talk Write Untuk Meningkatkan Komunikasi Matematis Siswa MAN 1 Medan Semi Syaina Amanda; Asrin Lubis
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2496

Abstract

This research aims to enhance the mathematical communication skills of students after implementing the Think Talk Write cooperative learning model. The study was conducted in the first semester of the 2023/2024 academic year in class XI MIA 3 at MAN 1 Medan. The subjects of this research were 39 students from class XI MIA 3 MAN 1 Medan. The object of this research was the mathematical communication skills of students by applying the Think Talk Write learning model. The research method used was classroom action research conducted over 2 cycles. The results of the students' mathematical communication skills test showed improvement from the initial test to the tests given in Cycle I and Cycle II. In the initial test, only 1 student (2.5%) achieved proficiency with an average score of 56, categorized as low. In Cycle I, there was a classical increase, with 10 students (25.6%) achieving proficiency with an average score of 67.9, categorized as moderate. In Cycle II, there was also a classical increase, with 33 students (84.6%) achieving proficiency with an average score of 86.9, categorized as high. It can be concluded that by implementing the Think Talk Write cooperative learning model, it is possible to improve the mathematical communication skills of class XI MIA 3 students at MAN 1 Medan.
Penerapan Model Pembelajaran Problem Based Learning san Pendekatan Saintifik Berbasis Lesson Study Untuk Meningkatkan Kemampuan Pemecahan Masalah Siswa Lisa Ariani; Asrin Lubis
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2497

Abstract

The purpose of this study is to ascertain how efforts are made and enhance students' capacity for problem-solving following the application of the lesson study-based scientific approach and problem-based learning model. 38 students from SMP Negeri 4 Tebing Tinggi's VIII–5 class during the 2022–2023 academic year served as the research subjects. Classroom Action Research (PTK), which is this kind of research, is divided into two cycles. In pre-action, students take an initial test, and at the conclusion of each cycle, they take an exam on their problem-solving skills. The research findings are as follows: (1) If the teacher masters and effectively applies the PBL model and scientific approach based on lesson study, students' mathematical problem solving abilities can be improved, (2) Application of the PBL model can increase student learning completeness by 63.16% from 23.68% at the end of cycle I to 86.84% at the end of cycle II. (3) Students' mathematical problem solving abilities can be improved by 34.37% from 47.47% at the end of cycle I to 82.04% at the end of cycle II.
Pengaruh Model Pembelajaran Berbasis Masalah dengan Pendekatan STEM terhadap Kemampuan Pemecahan Masalah Matematis Siswa Ripaldo Pandiangan; Asrin Lubis
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2518

Abstract

This study aims to determine whether there is an influence of the problem-based learning model (PBL) with a STEM approach on the mathematical problem solving ability of grade VIII students of SMP Negeri 17 Medan. This research was conducted at SMP N 17 Medan T.A 2023/2024. The research method used is a quasi-experimental method. The sample of this study consisted of two classes, namely class VIII-3 as an experimental class taught with a PBL model with a STEM approach and class VIII-4 as a control class taught with conventional models. Based on descriptive statistics and categorization of research results, it was found that the mathematical problem solving ability of experimental class students was 67,74% of students in the high category, 32.26% of other students in the medium category, and no students in the low category. Meanwhile, in the control class, 15,63% of students were in the high level of problem solving ability, 53,13% were in the medium level and 31,24% of students were in the category low category. Thus it can be seen that the mathematical problem solving ability of grade students taught with PBL with a STEM approach is better than conventional learning models. Furthermore, with inferential statistical analysis for the t test, calculated t value = 2,42 and ttable = 1,999623, thus t calculated > t table means that the problem-solving ability of students taught with PBL with a STEM approach is not the same as students who use the learning conventional model. With further analysis, Fcalculated = 5,6847 and F table = 3,998494482, then calculated F > F table so it can be concluded that problem-based learning models with a STEM approach have a significant effect on students' mathematical problem solving abilities.