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### Found 1 Documents Search Journal : Khazanah: Jurnal Mahasiswa

Description of Mathematical Reasoning Ability for Students of SMA Negeri 1 Tawangsari Class XI-MIPA 3 on Matrix Material Nikodemus Cahyo Saputro; Krisdianto Hadi Prasetyo; Andhika Ayu Wulandari
Khazanah: Jurnal Mahasiswa Vol. 12 No. 2 (2020): Abstract Proceeding Book: 1st International Conference-Labma Scientific Fair
Publisher : Universitas Islam Indonesia

#### Abstract

The purpose of this study was to determine how the students' mathematical reasoning abilities  towards the matrix material. The data in this study were obtained from the results of filling out  questionnaires and also interviews. Sources of data in this study were the subjects from which  the data were obtained, namely students of class XI-MIPA 3 SMA N 1 Tawangsari. The data  analysis technique used was data reduction, data presentation and conclusion drawing. The results of the data analysis from the questionnaire showed that the average percentage of  student responses to mathematical reasoning abilities on the matrix material was 60.75% and was  in the medium category. With the percentage on each indicator, namely on indicator 1 (students  do calculations with the applicable mathematical formula / rules) of 55.63% so that it is included  in the moderate category, students with the moderate category have aspects of the ability to  understand question commands and are only weak at calculation operations. In indicator 2  (students draw general conclusions based on mathematical processes / concepts) the percentage  is 61.25% so it is included in the medium category. In indicator 3 (students make estimates) the  percentage is 81.25% so that it is included in the high category, students with high categories  have aspects of the ability to understand question commands, question logic and can complete  counting operations. While the percentage on indicator 4 (students draw conclusions based on  the similarity of mathematical processes / concepts that are seen) is 54.5% so it is included in the  low category, students with low categories have aspects of the question's melogical ability and  are only weak in counting operations. The average percentage of the four indicators is 63.16% so  that student responses can be said to be in the medium category. In this study, checking the  validity of the data used triangulation techniques, namely by comparing the results of the study  with the results of interviews. From the comparison of data analysis with questionnaires and  interviews, it can be concluded that students with mathematical reasoning on the matrix material  are in the medium category. Key words: Mathematical reasoning, matrix.