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All Journal Didaktik : Jurnal Ilmiah PGSD STKIP Subang Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa
Melly Sundari Sitorus
Universitas Riau
Earth & Planetary Sciences Education Mathematics

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PENGEMBANGAN MEDIA AJAR DIORAMA BERBASIS STEM PADA MATERI METAMORFOSIS UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS SISWA KELAS III SEKOLAH DASAR Melly Sundari Sitorus; Santi Sirait; Asri Jully Syani; Neni Hermita; Rifqa Gusmida Syahrun Barokah
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 02 (2026): Volume 12 No. 02, Juni 2026 Produce
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i02.14401

Abstract

This research aims to develop media teaching metamorphosis based on STEM (Science, Technology, Engineering, and Mathematics) that is feasible and effective in improving thinking skills. This exploration is inspired by decisive reasoning abilities and understudies’ comprehension of the transformation learning of science material which isn’t amplified because of the growing experience which actually doesn’t utilize the right methodology and learning media. The motivation behind this review was to decide the attainability of STEM-based lifelike model media to further develop the decisive reasoning abilities of 3th grade primary school understudies. This sort of examination is Innovative work (Research and development) research utilizing the Borg and Gall model. The procedures of this research include several stages, namely analisis, design, development, implementation, and evaluation. Data were ccollected through observation, questionnaires, and tests. The feasibility of the developed media was determined based on validation results, while its effectiveness was measured by comparing students critical thinking skills before and after using the media. The results show that the STEM-based lifelike model media is feasible to be used in the learning process and is effective in improving the critical thinking skills of third grade primary school students. Therefore, this media can be used as an alternative learning tool to support science learning, especially in metamorphosis material, so that students become more active and better understand the learning content.
Analisis Tingkat Pemahaman Konsep Pengukuran pada Mahasiswa PGSD UNRI Angkatan 2024 Melly Sundari Sitorus; Nuraini Nuraini; Jesi Alexander Alim; Cici Oktaviani
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 4 No. 5 (2026): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v4i5.1115

Abstract

An understanding of mathematical concepts is a crucial competency for Primary School Teacher Education (PGSD) students—as prospective teachers—to teach mathematical concepts meaningfully. One fundamental concept that must be mastered is measurement, which encompasses an understanding of units, measuring instruments, and their application in various contexts. This study aims to analyze the level of understanding regarding measurement concepts among the 2024 cohort of PGSD students at the University of Riau. The study employs a quantitative approach using a descriptive method. Data were collected via a questionnaire administered to 40 students from the 2024 cohort and analyzed using descriptive statistics. The research results indicate that the majority of students possess a good understanding of measurement concepts. Based on the analysis of 25 statement items, the average positive response was 95.1% and the negative response was 4.9%, placing the results in the "very good" category. These findings demonstrate that the students have a solid grasp of fundamental measurement concepts, units, measuring instruments, and the application of measurement concepts in daily life. These results can serve as a basis for consideration in developing mathematics instruction for prospective elementary school teachers.
Co-Authors Asri Jully Syani Cici Oktaviani Jesi Alexander Alim Neni Hermita Nuraini Nuraini Rifqa Gusmida Syahrun Barokah Santi Sirait