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All Journal Paradikma: Jurnal Pendidikan Matematika INSPIRATIF JURNAL PENDIDIKAN MATEMATIKA de Fermat : Jurnal Pendidikan Matematika MARISEKOLA: Jurnal Matematika Riset Edukasi dan Kolaborasi Issues in Mathematics Education (IMED) Cakrawala Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences International Journal of Educational Research Jurnal Cendekia Ilmiah PESHUM Issues in Mathematics Educations (IMED)
Rosauli Novalina Samosir
Universitas Negeri Manado
Arts Humanities Astronomy Chemistry Decision Sciences, Operations Research & Management Education Energy Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Komparasi Pemahaman Konsep Persamaan Kuadrat antara Problem-Based Learning dan Pembelajaran Langsung Jeilan Cicilia Tumei; Ichdar Domu; Rosauli Novalina Samosir
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 5 No. 4: Juni 2026
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v5i4.18301

Abstract

This study aims to determine the difference in students' conceptual understanding of quadratic equations between those taught with the Problem-Based Learning (PBL) model and those taught with direct instruction. It was motivated by students' low conceptual understanding in mathematics, largely caused by the dominance of teacher-centered learning. A quantitative approach was employed using a quasi-experimental method with a pretest-posttest control group design. The sample comprised two grade IX classes selected through cluster sampling, namely one experimental and one control class, each consisting of 30 students. Data were collected through an essay-type conceptual understanding test validated by experts. Normality (Shapiro-Wilk) and homogeneity (Levene) tests were run using SPSS, while the hypothesis was tested with an Independent Samples T-Test at a 0.05 significance level. The results showed a t-value of 4.838, greater than the t-table value of 1.671, so H0 was rejected and H1 accepted. The experimental class mean post-test score (74.17) exceeded that of the control class (69.93). Thus, students taught with PBL achieved better conceptual understanding of quadratic equations, suggesting PBL is an effective alternative for mathematics learning.
Studi deskriptif terhadap produk media manipulatif mahasiswa dan relevansinya terhadap konsep matematika Rosauli Novalina Samosir; Ermita Ermita
Cakrawala Vol 4, No 1 (2025): Juni
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/cakrawala.v4i1.2984

Abstract

Penelitian ini bertujuan untuk mendeskripsikan karakteristik media manipulatif buatan mahasiswa calon guru matematika, kesesuaian media terhadap konsep matematika, serta tanggapan mahasiswa terhadap proses perancangannya. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan melibatkan tujuh kelompok mahasiswa yang merancang berbagai media sesuai topik matematika tertentu. Data dikumpulkan melalui dokumentasi media, catatan observasi, dan wawancara. Hasil penelitian menunjukkan bahwa media yang dibuat menunjukkan keberagaman bentuk dan kreativitas, meskipun belum semuanya sesuai dengan esensi konsep matematika yang dituju. Proses perancangan juga memberikan pengalaman reflektif yang bermakna bagi mahasiswa dalam memahami keterkaitan antara teori dan praktik pembelajaran. Kesimpulannya, kegiatan perancangan media manipulatif mendorong keterlibatan aktif mahasiswa dalam pembelajaran dan memiliki potensi untuk dikembangkan lebih lanjut sebagai bagian dari pembelajaran profesi guru.
Co-Authors Aisyiah Restutiningsih Putri Utami Anggriani, Nita Ermita Ermita Ermita Ermita Ermita Humuntal Banjarnahor Ichdar Domu Jeilan Cicilia Tumei Lauale, Arthur Zefanya Lilis Handayani Miftahul Jannah Muhammad Isbar Pratama Navel Oktaviandy Mangelep Nelwan, Andriani Waraney Pargaulan Siagian Philotheus E. A. Tuerah Vivian E. Regar