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All Journal Polinomial : Jurnal Pendidikan Matematika Ijarme
Herdiana, Andre
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Education Mathematics

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Pemanfaatan Alat Peraga Jam Sudut sebagai Media dalam Pembelajaran Matematika Herdiana, Andre; Julia, Rida
Polinomial : Jurnal Pendidikan Matematika Vol. 1 No. 1 (2022): May 2022
Publisher : Papanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.885 KB) | DOI: 10.56916/jp.v1i1.41

Abstract

Artikel ini bertujuan untuk mendeskripsikan bagaimana penggunaan alat peraga matematika Jam Sudut dalam pembelajaran matematika. Jam sudut merupakan media pembelajaran yang menyediakan berbagai macam sudut yang dihasilkan dari jarum jam. Penggunaan alat peraga ini bertujuan agar siswa dapat menemukan besar sudut dari berbagai sudut yang dibentuk oleh jam. Secara psikologis permainan dengan menggunakan alat peraga ini dapat menumbuhkan motivasi dan minat siswa belajar matematika. Selain itu manfaat media jam sudut ini adalah memudahkan guru dalam menjelaskan macam- macam sudut, besarnya sudut dan cara melukis sudut.
An Analysis of Seventh-Grade Students’ Critical Thinking Skills in Solving Triangle-Based Word Problems Herdiana, Andre; Usmiyati, Uum
Al-Mufid Vol 2 No 1 (2024)
Publisher : Papanda Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/ijr.v2i1.2277

Abstract

This study aims to analyze the critical thinking skills of seventh-grade students in solving word problems involving triangle concepts. Employing a qualitative descriptive method, the research was conducted at SMP Negeri 3 Sukadana with three students representing high, moderate, and low performance levels. Data were collected through essay-based test items and follow-up interviews, focusing on five indicators of critical thinking: elementary clarification, basic support, inference, advanced clarification, and strategies and tactics. The findings revealed that students experienced difficulties across all indicators, particularly in integrating strategies and making valid conclusions. Average scores for each indicator demonstrated that students’ critical thinking skills remain at a developing level. This suggests the need for instructional interventions that explicitly foster reasoning, analysis, and reflective thinking. The study highlights the importance of contextual and open-ended problem-solving in developing students’ mathematical understanding and higher-order thinking skills.
Co-Authors Julia, Rida Usmiyati, Uum