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All Journal Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) Jurnal Pendidikan dan Sosial Humaniora
Novitasari Br Hutauruk
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Humanities Education Mathematics

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Analisis Pemahaman dan Kesulitan Siswa pada Materi Kaidah Pencacahan di Kelas X SMA Negeri 1 Percut Sei Tua Kairuddin Kairuddin; Novitasari Br Hutauruk; Yulita Rotua Putri S. Sihite; Esther Putri Veronica Siregar; Yehekiel Torino F Sinaga
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i1.7061

Abstract

This study aims to identify the difficulties faced by tenth-grade students in understanding enumeration rules and to find effective learning solutions. The research method used was descriptive qualitative, with 33 tenth-grade students of SMA Negeri 1 Percut Sei Tuan as subjects. The instruments used included a diagnostic test in the form of National Examination questions 7-11 on permutations and combinations, interviews with mathematics teachers, and classroom observations. The results showed that the majority of students (50%) were in the moderate understanding category, understanding the basic concepts but frequently making procedural errors. Thirty percent of students were in the low understanding category, having difficulty distinguishing between addition and multiplication rules and applying the concepts to word problems. The main obstacles identified included a lack of mastery of basic concepts, difficulty determining solution steps, a lack of varied practice questions, and limited interactive learning media. Recommended solutions include the use of visual media such as tree diagrams and tables, a contextual approach to everyday life problems, collaborative learning, and the provision of additional tutoring.
Analisis Kesalahan Mahasiswa dalam Menentukan Besar Sudut pada Bangun Datar Brilyant Alvindo Sihombing; Fithrah Amalia Sirait; Devita Syahputri; Dinda Rizky; Siti Aisyah Lubis; Novitasari Br Hutauruk; Muhammad Amin Fauzi
Khatulistiwa: Jurnal Pendidikan dan Sosial Humaniora Vol. 5 No. 1 (2025): Maret : Jurnal Pendidikan dan Sosial Humaniora
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/khatulistiwa.v5i1.5706

Abstract

This study aims to analyze the types of student errors in solving problems on determining the size of angles in flat shapes. The subjects of the study were students of the Mathematics Education Study Program, State University of Medan, academic year 2024/2025. Data were obtained through written tests and interviews with 10 students. The results of the study showed that the errors often made by students included conceptual errors (42%), procedural errors (38%), and computational errors (20%). Conceptual errors are mainly related to understanding the relationship between angles in triangles and supplementary angles, procedural errors are related to unsystematic solution steps, while computational errors are errors in making calculations. This study provides recommendations to improve students' conceptual understanding of angles and their relationships in flat shapes.
Co-Authors Brilyant Alvindo Sihombing Devita Syahputri Dinda Rizky Esther Putri Veronica Siregar Fithrah Amalia Sirait Kairuddin Kairuddin Muhammad Amin Fauzi Siti Aisyah Lubis Yehekiel Torino F Sinaga Yulita Rotua Putri S. Sihite