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All Journal (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING
Harry Dwi Putra
IKIP Siliwangi, Cimahi, Indonesia
Education Mathematics Other

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The Implementation of Scientific Approach to Improve Mathematical Understanding Ability on Senior High School Students Helmi Ilham Nabila; Harry Dwi Putra; Heris Hendriana
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 6, No 2 (2023): VOLUME 6 NUMBER 2, JUNE 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i2.17513

Abstract

Mathematical understanding ability is a basic ability that must be possessed by every student in understanding the concept of material and applying it in a mathematical symbol and formula. However, the fact is that currently the failure in learning mathematics is due to students' lack of understanding of the concepts in mathematics material. The purpose of this study was to see the improvement of mathematical understanding ability of class VIII-B students on the material of Two-Variable Linear Equation System at SMPN 1 Margaasih. The research method used is the model of Kemmis and McTaggart with the subject studied, namely students of class VIII-B SMPN 1 Margaasih. The research conducted used Classroom Action Research (CAR). The research took place over 2 cycles, each cycle consisting of several stages starting from the plan, action, observation and reflection stages. In cycle I and cycle II the teacher gave a test, besides that in each cycle an observation sheet was provided. The results of this study showed that there was an increase in the completeness of learning scenarios for teachers by 51.92% and for students by 50.01%. In addition, the results of filling out the tests given each cycle showed good results with the number of students who scored above the KKM in cycle I by 69.44% and cycle II by 80.55%, meaning an increase of 11.11%. Thus, the mathematical understanding ability of class VIII students on Two-Variable Linear Equation System material at SMPN 1 Margaasih using a scientific approach has improved.
The Relation Between Self-Confidence and Mathematical Problem Solving Ability on Islamic Junior High School Students Rifa Mar'ah Sholihah; Harry Dwi Putra; Heris Hendriana
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 6, No 2 (2023): VOLUME 6 NUMBER 2, JUNE 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i2.15373

Abstract

Mathematics is very important in life. The self-confidence that students have will certainly affect the process of learning mathematics. Learning objectives measure students' self-confidence towards mathematical problem-solving abilities.The aim of the study was to analyze the relationship between self-confidence and the ability to solve mathematical problems and analyze students' difficulties in solving problems on the System of Two Variable Linear Equations (SPLDV) material at Madrasah Tsanawiyah. Research using quantitative methods with correlation tests. The research sample was 20 Madrasah Tsanawiyah students. The research instrument consisted of a test to measure mathematical problem solving abilities in the form of 3 essay questions, while the non-test instrument was the self-confidence consisting of 20 statement items. . The learning method used conventionally students are divided into several groups randomly. School books are given as a guide for students in learning.The results showed that there was a very strong relationship (r = 0.83) between self-confidence and the ability to solve mathematical problems. Conclusion  the results of the analysis of students' difficulties were found based on the polya step, especially at the stage of proving that students were not yet able to check the correctness of the solution in the process of working on solving mathematics. It is hoped that future research will use problem solving methods to see how self-confidence increases in the ability to solve mathematical problems.
Analysis of Vocational School Students' Error in Solving Linear Program Problems Enjang Jaenal; Harry Dwi Putra; Asep Ikin Sugandi; Heris Hendriana
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 6 No. 3 (2023): VOLUME 6 NUMBER 3, SEPTEMBER 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i3.17964

Abstract

The reality on the ground shows that students still make mistakes in solving problems in the form of Linear Program stories. This study aims to describe students' mistakes in solving word problems in linear programming material. The method used in this research is descriptive qualitative research. The subjects in this study were class X students of Karya Bahana Vocational School, Bekasi City. The instrument in this study was in the form of 5 questions in the form of descriptions. In addition to the instrument in the form of tests, interviews were used to dig deeper into students' answers to the questions presented. The results showed that the most errors made by students were in the aspect of errors in writing the final answers, and the fewest errors were in the aspects of transformation errors. The cause of reading errors is that students are unable to interpret sentences correctly and cannot find key words and important information. The cause of the error in understanding the problem was that students did not include the known data and the data asked. The causes of errors in the transformation are students not being able to model everyday sentences into mathematical symbols and errors in using mathematical operations. The cause of the process skill error was that the student was unable to write down the objective function and the student was unable to continue with the answer, while the cause of the error in writing the final solution was the inability of the student to draw conclusions correctly.
Co-Authors Asep Ikin Sugandi Enjang Jaenal Helmi Ilham Nabila Heris Hendriana Rifa Mar'ah Sholihah