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Fatimah, Ade Evi
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Education Mathematics

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UPAYA PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA MTS MELALUI MODEL PEMBELAJARAN KOOPERATIF TIPE STAD Fatimah, Ade Evi
Journal of Didactic Mathematics Vol 1, No 1 (2020): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (511.84 KB) | DOI: 10.34007/jdm.v1i1.156

Abstract

The purpose of this study is to improve the mathematical problem-solving ability of students in class VII-1 MTs Islamiyah Medan through the STAD type cooperative learning model. This research is a Class Action Research (CAR). The subjects of this study were 40 students of grade VII-1 MTs Islamiyah Medan. The object in this study is to improve students' mathematical problem-solving abilities through the STAD Type Cooperative learning model on the subject of rectangular flat shapes. This research instrument uses tests of mathematical problem-solving abilities, observation, and interviews. Based on the preliminary results of the interviews conducted with the mathematics teacher, it was obtained that the mathematical problem-solving ability of students in class VII-1 MTs Islamiyah Medan was still not optimal. From the data obtained only 17.5% of students met the mathematical problem-solving ability criteria. This research was conducted in two cycles by providing treatment using STAD learning. Based on the results of data analysis students' mathematical problem-solving abilities in the first cycle obtained that 70% of students meet the criteria. But because it has not reached 85% completeness then continued with the second cycle. In the second cycle, 90% of students who met the criteria of mathematical problem-solving ability were obtained. The conclusion of this study is an increase in students' mathematical problem-solving abilities from cycle I to cycle II.
Meningkatkan resiliensi matematis mahasiswa pada mata kuliah matematika dasar melalui pendekatan differentiated instruction Fatimah, Ade Evi; Purba, Azrina
Journal of Didactic Mathematics Vol 2, No 1 (2021): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v2i1.617

Abstract

This study is a Classroom Action Research with a qualitative descriptive method, which aims to increase students' mathematical resilience when using the Different Instruction approach. The subjects of this study were 40 first-semester students of class B of Informatics Engineering and Computer Education STKIP Al Maksum Langkat. The object of this research is the students' mathematical resilience ability through the Different Instruction approach in the basic mathematics subject matter of functions. This research procedure refers to four stages, namely planning, acting, observing, and reflecting. This research was conducted in two cycles, the research was based on the criteria that reached 85% for students who produced a minimum result of 65%. The instrument used in this study was a non-test question in the form of a mathematical resilience scale given at the beginning and end of the lesson. Based on the results of the study, it can be ignored that the Instruction Differentiation approach can improve the mathematical resilience of the first semester B grade students of the PTIK study program, by grouping students based on learning styles more effective in increasing students' mathematical resilience in applying the Instruction Differentiation approach.
Co-Authors Purba, Azrina