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VALIDITY AND EFFECTIVENESS OF ETHNOSCIENCE-BASED CHEMISTRY LEARNING MATERIALS ON REDOX AND CHEMICAL NOMENCLATURE TO ENHANCE STUDENTS’ SCIENTIFIC LITERACY AND CRITICAL THINKING SKILLS Wahyuni, Sri; Novita, Mega; Hayat, Muhammad Syaipul
Jurnal Pendidikan Matematika dan IPA Vol 16, No 3 (2025): September 2025
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpmipa.v16i3.92464

Abstract

This study aims to develop and test the validity and effectiveness of ethnoscience-based chemistry learning devices on redox material and chemical compound nomenclature to improve science literacy and critical thinking skills of students. This research uses the 4D development model (Define, Design, Develop, Disseminate). The learning devices developed include teaching modules, learning materials, and student worksheets. The research subjects were 34 class XII students at MAN Wonogiri. The findings show that: (1) The learning devices were declared very valid by expert validators with scores of 91.15% for teaching modules, 91.82% for LKPD, 93.20% for teaching materials, and 22.5 (scale 25) for question instruments, (2) Practitioner validators also declared the devices very valid with scores of 90.72% for teaching modules, 92.73% for LKPD, 94.00% for teaching materials, and 23.5 (scale 25) for question instruments, (3) The reliability and validity tests showed Cronbach Alpha values of 0.749 and 0.921 for science literacy and critical thinking instruments respectively, (4) The learning devices are effective with N-gain values of 0.6103 for science literacy and 0.6501 for critical thinking skills, both in moderate category. The ethnoscience-based learning tools developed are valid and effective to improve students' science literacy and critical thinking skills.
Peningkatan pemahaman konsep matematika melalui Realistic Mathematic Education berbantu media konkret pada siswa kelas 1 sekolah dasar Riski Febrianti; Muhammad Syaipul Hayat; Christin Eni Wati
Jurnal Pendidikan Guru Profesional Vol. 2 No. 2 (2024): JURNAL PENDIDIKAN GURU PROFESIONAL
Publisher : Pascasarjana Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jpgp.v2i2.1641

Abstract

The aim of this research is to describe the increase in the ability to understand mathematical concepts using Realistic Mathematic Education assisted by concrete object media. The research subjects were class 1B of Kalicari 01 Semarang State Elementary School, totaling 27 children, consisting of 11 male students and 16 female students. The data collection techniques used are observation, tests and documentation. Data analysis in this class research action is quantitative and qualitative data analysis. The research results showed that the ability to understand mathematical concepts in cycle I was 54.07% with low criteria and in cycle II it was 80.87% with high criteria. Based on the research that has been conducted, it can be concluded that the ability to understand mathematical concepts, teachers' teaching skills in managing learning, and student activities in class 1 of Kalicari 01 Semarang State Elementary School increased after the implementation of the Realistic Mathematics Education model assisted by concrete objects as media.