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All Journal Indonesian journal of teaching and learning International Journal of Applied Learning and Research in Algebra
Nana Karina Mayda
Islamic University of Riau
Education Languange, Linguistic, Communication & Media Mathematics Other

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Analysis of Mathematical Communication Skills of High School Students on Matrix Material Fitri Nur Ashari; Nana Karina Mayda; Desti Intan Nurhakiki; Lilis Marina Angraini
Indonesian Journal of Teaching and Learning (INTEL) Vol. 4 No. 1 (2025)
Publisher : Edupedia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56855/intel.v4i1.1030

Abstract

This research aims to describe students’ mathematical communication skills in solving problems, especially matrix material in class XI 2 students at SMA Negeri 2 Tambang. The type of research used is a descriptive method with a qualitative approach. Data collection techniques were carried out using observation, tests, interviews and documentation methods. The test instrument used is 3 essay questions about students’ communication skills which have been validated. The subjects of this research were 28 students in class XI 2 SMA Negeri 2 Tambang. Then 4 students were selected as representatives of the research subjects based on the category of mathematical communication skills used. The results of this research show that students’ mathematical communication skills in solving questions on matrix material average 65,89 in the high category. Where there are 6 students (21,43%) in this very high category, there are 9 students (32,14%) in the high category, and there are no students in the low category.
Students' Mathematical Reasoning Ability on The System of Linear Equations of Two Variables in Grade VIII Fitri Nur Ashari; Nana Karina Mayda; Reni Wahyuni
International Journal of Applied Learning and Research in Algebra Vol. 2 No. 2 (2025)
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56855/algebra.v2i2.1488

Abstract

Mathematical reasoning ability is an ability that is considered important for students to have in learning mathematics. The purpose of this study is to describe students' mathematical reasoning ability on the material of Two Variable Linear Equation System . This type of research is a type of research that uses a descriptive method with a qualitative approach. Data collection techniques in this study were carried out using observation, test, and interview methods. The test instrument used was 2 essay questions about students' reasoning ability that had been validated. The subjects of this study were 20 students of class VIII 1 SMP Negeri 4 Koto Gasib. Based on the test results, the researcher selected students who had the same ability, then 6 students were selected as representatives of the research subjects based on the category (high, medium and low). The results of this study indicate that students with high initial ability are able to meet all indicators of mathematical reasoning ability. Students with medium ability are not yet able to present mathematical statements in writing, are able to submit conjectures but the steps are not complete, are able to manipulate well, are able to compile evidence of the truth of the solution and are able to draw conclusions correctly and precisely. Students with low abilities are unable to present mathematical statements in writing, are able to submit conjectures but the steps are incomplete, are able to manipulate correctly, but are not yet able to compile evidence for the truth of the solution and finally students are unable to draw conclusions from the answers they have obtained.
Co-Authors Desti Intan Nurhakiki Fitri Nur Ashari Lilis Marina Angraini Reni Wahyuni