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All Journal Santhet: (Jurnal Sejarah, Pendidikan Dan Humaniora) Riemann : Research of Mathematics and Mathematics Education
Khoirul Ana
Universitas Muria Kudus
Humanities Education Environmental Science Mathematics Other

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Achievement of Mathematical Problem-Solving Abilities of 4th Grade Students at SDN 02 Kajar through The Problem-Based Learning (PBL) Model: One-Sample T-Test Analysis Khoirul Ana; Risma Hanim Mazida; Fauzul Muna; Fitriyah Amaliyah
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 3 (2025): EDISI DESEMBER
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/riemann.v7i3.57

Abstract

The mathematical problem-solving ability of IV grade students in plane geometry is still a concern that requires attention. Teachers, as educators, should apply varied learning models that can develop students' mathematical problem-solving skills. This research aims to determine whether the mathematical problem-solving abilities of IV grade students at SDN 02 Kajar in plane geometry using the Problem Based Learning (PBL) model can meet the minimum competency criteria (KKM) score or not. This study is quantitative research using a pre-experimental design method with a one-shot case study type, involving 15 fourth grade students at SDN 02 Kajar. Data collection techniques include mathematical problem-solving ability tests, observation, and interviews. The data obtained was then analyzed using the T-Test (one-sample t-test). The research results show that the achievement of mathematical problem-solving abilities through the Problem-Based Learning (PBL) model is equal to the minimum competency criteria (KKM) score, which is 75.
THE EFFECTIVENESS OF PROBLEM BASED LEARNING ASSISTED BY LANCER MEDIA IN IMPROVING ELEMENTARY SCHOOL STUDENTS' CONCEPTUAL UNDERSTANDING OF THE HUMAN DIGESTIVE SYSTEM: Efektivitas Model Problem Based Learning Berbantuan Media LANCER dalam Meningkatkan Pemahaman Konsep Materi Sistem Pencernaan Manusia pada Siswa Sekolah Dasar Khoirul Ana; Sekar Dwi Ardianti; Fina Fakhriyah
Santhet: (Jurnal Sejarah, Pendidikan Dan Humaniora) Vol 10 No 4 (2026): Santhet (Jurnal Sejarah Pendidikan Dan Humaniora)
Publisher : Proram studi pendidikan Sejarah Fakultas Keguruan Dan Ilmu Pendidikan Universaitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/santhet.v10i4.8942

Abstract

IPAS instruction regarding the digestive system at SD Negeri 2 Garung Kidul is heavily dominated by verbal lectures and static media, resulting in low conceptual understanding with a pre-research average score of 46.04 and chronic biological misconceptions. This quantitative experimental study utilizing a One-Group Pretest-Posttest design aims to evaluate the effectiveness of the Problem-Based Learning (PBL) model integrated with interactive LANCER media on a saturated sample of 25 fifth-grade students. Data were gathered through a validated 14-item essay test, observation sheets, and interviews, and subsequently analyzed using a paired sample t-test and the N-gain formula. The results revealed a significant leap in the posttest average score to 82.60, achieving a 92% classical completeness rate. The paired sample t-test yielded a significance value of Sig. (2-tailed)= 0.000, indicating a highly distinct variance in conceptual mastery. The intervention's impact is substantially supported by a classical N-gain score of 0.68 (moderate category) alongside an effect size represented by an effectiveness percentage of 67.8%, positioning this combined approach within the quite effective range for quality improvement. These findings demonstrate that integrating LANCER media into Problem-Based Learning substantially enhances conceptual understanding by facilitating visual representation, active inquiry, and collaborative learning.
Co-Authors Amaliyah, Fitriyah Fauzul Muna Risma Hanim Mazida Sekar Dwi Ardianti