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All Journal JIPM (Jurnal Ilmiah Pendidikan Matematika) JUPE : Jurnal Pendidikan Mandala
Huda, Ristianur
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Education

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Pengembangan Lembar Kegiatan Peserta Didik Berbasis REACT Materi SPLDV Huda, Ristianur; Rahardi, Rustanto; Susanto, Hery
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol 11, No 1 (2022)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jipm.v11i1.12757

Abstract

Kesulitan penemuan konsep dan pemodelan matematis terhadap materi sistem persamaan linear dua variabel (SPLDV) sering kali dialami oleh siswa. Strategi Relating, Experiencing, Applying, Cooperating And Transferring (REACT) menjadi fokus penelitian untuk dapat diterapkan dalam pembelajaran. Pendekatan yang digunakan dalam penelitian ialah Research and Development (R&D) dengan menggunakan model pengembangan Analysis, Design, Development, Implementation, Evaluation (ADDIE). Penelitian ini bertujuan untuk menghasilkan produk lembar kegiatan peserta didik (LKPD) dan dilakukan uji produk sehingga bernilai valid, praktis dan efektif. Subjek penelitian yakni 34 siswa MTSs Nurul Yaqin kelas VIIIA dan VIIIB. Hasil penelitian menunjukkan LKPD yang dikembangkan bernilai valid dan layak untuk diuji coba berdasarkan validasi ahli dengan akumulasi skor rata-rata yakni 67% terhadap aspek validasi media, 66% terhadap aspek validasi materi. Melalui uji coba lapangan menunjukkan hasil persentase rata-rata kepraktisan yakni 79% dan efektivitas  84%. Sehingga dapat disimpulkan LKPD yang dikembangkan bernilai valid, praktis dan efektif.
Cognitive Analysis of the Understanding of Euclidean Geometry Concepts of Students in the Mathematics Education Study Program Huda, Ristianur
JUPE : Jurnal Pendidikan Mandala Vol 11, No 1 (2026): JUPE : Jurnal Pendidikan Mandala (Februari)
Publisher : Lembaga Penelitian dan Pendidikan Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jupe.v11i1.10324

Abstract

This study aims to conduct a cognitive analysis of mathematics education students' understanding of concepts in Euclidean geometry. Students are often unable to fully achieve and optimize the formal cognitive stages required in Euclidean geometry, resulting in a gap between the complex structure of the material and their thinking abilities. This is a descriptive qualitative study aimed at examining students' cognitive processes. The subjects were 11 second-semester Mathematics Education students who had taken the Euclidean Geometry course in the even semester of the 2024/2025 academic year. The main instrument was a Euclidean geometry comprehension test supported by a questionnaire to explore thinking processes and misconceptions. Evaluation of understanding was reviewed based on the cognitive level. The results showed that many students, even at the tertiary level, were still at a low level in the Van Hiele framework, namely level 0 (Visualization) or level 1 (Analysis). This condition causes students to tend to experience difficulties in conducting formal proofs; 63.6% of students lacked understanding due to a low logical understanding of Euclidean postulates. The level of students' understanding of Euclidean geometry is strongly influenced by how they process information cognitively. Therefore, teachers need to develop structured learning strategies based on Van Hiele's learning phases to facilitate students' cognitive progress in a gradual and planned manner.
Co-Authors Hery Susanto Rustanto Rahardi