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Journal : Edumatsains

DESKRIPSI KEMAMPUAN KOMUNIKASI MATEMATIS SISWA DALAM PENYELESAIAN PERMASALAHAN PROGRAM LINIER Maduni Ismu Qolbi; Indrie Noor Aini
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 7 No 1 (2022): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v7i1.3772

Abstract

This study aims to describe the mathematical communication skills of high school students in class XI on linear program material. The research method used is descriptive research. The subjects in this study consisted of 5 students of class XI one of the public high schools in Karawang Regency which were determined using purposive sampling technique. The research data collection technique was obtained from a test instrument in the form of 3 validated description questions which contained 3 indicators of mathematical communication ability. The results of this study indicate that the mathematical communication ability of class XI high school students in Karawang Regency in understanding linear programming material is still very low. This can be seen from the average percentage of the three questions of mathematical communication skills is 48.3℅. In indicator 1, students have not been able to express mathematical ideas through writing, demonstrate and visually describe them. For indicator questions 2 students are able to understand, interpret, and evaluate mathematical ideas both in writing and in other visual forms, but there are still some errors. Meanwhile, on indicator questions 3 students have not been able to use terms, notations, mathematical symbols and their structures to present ideas, describe relationships with various situation models.
DESKRIPSI KEMAMPUAN PEMAHAMAN MATEMATIS SISWA DALAM MENYELESAIKAN SOAL EKSPONEN KELAS X SMA Imelda Agustin Rostiana; Indrie Noor Aini
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 7 No 1 (2022): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v7i1.3956

Abstract

This research is to describe the mathematical understanding ability of high school students on exponential material based on the achievement of each indicator of mathematical understanding. This type of research is a qualitative descriptive research. The subjects in this study were high school students Class X for the academic year 2021/2022 in the Karawang area which consisted of 3 students. The research sample was obtained through a purposive sampling technique, namely taking samples with certain considerations. The data collection technique used a test instrument which consisted of 3 description questions. Data were analyzed descriptively. The data analysis technique used is qualitative data analysis with data reduction steps, data presentation and conclusion drawing. The results of the analysis of this study indicate that the ability of students to solve exponential problems based on indicators of understanding is quite good. The results showed that on average students were able to understand the problem, students were able to understand the concept of the exponential equation, and students were able to adjust the exponential equation formula to the problem solving. However, there are errors where students have not been able to determine the set of solutions correctly.