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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar Didaktik : Jurnal Ilmiah PGSD STKIP Subang
Simanullang, Asria Ronauli
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PENERAPAN PROJECT BASED LEARNING DALAM MEMBANGUN PEMAHAMAN KONSEP BELAJAR SISWA PADA MATERI BANGUN RUANG KUBUS DAN BALOK Siregar, Budi Halomoan; Panjaitan, Chesia Aprina; Anggelina, Maya; Sihombing, Kesia; Simanullang, Asria Ronauli
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 01 (2026): Volume 11 No. 01, Maret 2026 Release
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i01.40628

Abstract

Students’ understanding of cube and cuboid concepts has not yet been optimally achieved, as the learning process tends to be teacher-centered and does not sufficiently involve students actively. This condition indicates the need for a learning model that not only actively engages students but also provides meaningful learning experiences. This study was conducted to examine the implementation of the Project-Based Learning (PjBL) model in supporting the conceptual understanding of Grade VIII students at SMP Negeri 34 Medan on the topic of cubes and cuboids. The research employed a qualitative descriptive approach, with the research subjects consisting of 26 Grade VIII students and one mathematics teacher. Data collection techniques included observation, interviews, documentation, and analysis of lesson plan (RPP) documents. Data analysis was carried out qualitatively through the stages of data reduction, data presentation, and conclusion drawing. Based on the research findings, the implementation of the Project-Based Learning (PjBL) model was proven to help students improve their conceptual understanding. This was indicated by students’ ability to explain concepts in their own words, relate concepts to real-life situations, and correctly apply surface area and volume concepts. Therefore, Project-Based Learning can be considered an alternative mathematics learning model that is active, contextual, and student-centered.
ANALISIS KESULITAN SISWA DALAM MEMAHAMI SOAL CERITA MATEMATIKA DITINJAU DALAM ASPEK BAHASA: ANALISIS KESULITAN SISWA DALAM MEMAHAMI SOAL CERITA MATEMATIKA DITINJAU DALAM ASPEK BAHASA Panjaitan, Chesia Aprina; Sihombing, Kesia; Anggelina, Maya; Simanullang, Asria Ronauli; Febriana, Ika
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 02 (2026): Volume 12 No. 2, Juni 2026 Public
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i02.12938

Abstract

Students’ ability to understand mathematical word problems remains a complex issue, particularly when they are faced with language usage embedded in the problems. This study aims to analyze students’ difficulties in understanding mathematical word problems from a language perspective. This research employs a qualitative approach with a descriptive method. The subjects of this study were eleventh-grade students of SMA Negeri 6 Medan. Data were collected through a test consisting of five mathematical word problems and documentation of students’ work. The data were analyzed using data reduction, data presentation, and conclusion drawing techniques. The results show that students still experience various difficulties in understanding mathematical word problems related to language aspects, including understanding mathematical vocabulary, sentence structure, interpretation of problem meaning, ability to connect information, and the ability to transform language into mathematical models.
ANALISIS KESALAHAN SISWA SMP DALAM MENYELESAIKAN SOAL PERSEGI PANJANG BERDASARKAN TEORI NEWMAN Zulaida, Putri; Agustin, Miranti; Panjaitan, Chesia Aprina; Simanullang, Asria Ronauli; Fauzi, KMA
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.47302

Abstract

This study aims to analyze junior high school students' errors in solving rectangle problems based on Newman’s Theory. This research used a qualitative descriptive approach with 18 seventh-grade students of SMP Negeri 14 Medan as the subjects. Data were collected through a written test consisting of five essay questions, which were then analyzed based on Newman’s stages of errors, including reading errors, comprehension errors, transformation errors, process skill errors, and encoding errors. The results showed that students made errors at all stages of problem solving. The most dominant error was comprehension error at 61.11%, indicating that students still had difficulties in understanding the meaning of the problem and identifying the known and asked information. Furthermore, process skill errors at 50.00% and transformation errors at 38.89% showed that students were still less careful in calculations and were not yet accurate in determining the appropriate problem-solving strategy. Meanwhile, encoding errors at 27.78% and reading errors at 5.56% were found in lower percentages. These findings indicate that students’ conceptual understanding and thinking processes are still not optimal, so learning strategies that emphasize conceptual understanding, systematic problem-solving processes, and continuous practice are needed.
Co-Authors Agustin, Miranti Anggelina, Maya Budi Halomoan Siregar Fauzi, KMA Febriana, Ika Panjaitan, Chesia Aprina Sihombing, Kesia Zulaida, Putri