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All Journal Lantanida Journal Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Indonesian Journal of Chemical Science and Technology Hydrogen: Jurnal Kependidikan Kimia Jurnal Nasional Holistic Science CHEDS: Journal of Chemistry, Education, and Science Meta: Journal of Science and Technological Education Jurnal Abdimas Ilmiah Citra Bakti
Samosir, Rafidah Almira
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Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences Other

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Journal : Lantanida Journal

 1 
THE IMPACT OF DISCOVERY LEARNING ON HIGHER-ORDER THINKING SKILLS IN CHEMISTRY: A META-ANALYSIS Ardila, Mutia; Samosir, Rafidah Almira; Pratiwi, Alfira Julian; Kurniawan, Ekin Dwi Arif; Ridho, Dimas; Sa’diyah, Halimatus
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i1.29914

Abstract

This research examines the effect of the discovery learning model on higher-order thinking skills in chemistry subjects at the high school level in Indonesia with a total sample of 230 students. The research method is a meta-analysis study with a range of research data from 2015-2024 based on Google Scholar indexed by Sinta. Heterogeneity test analysis using JASP version 0.8.5 shows a τ² value of 0.236 and a τ value of 0.485, with an I² value approaching 100% (CI: 74.015%–98.358%). The results indicate a high level of heterogeneity (98.358%). Therefore, a random effects model is used in the analysis. The meta-analysis results suggest that discovery learning significantly affects higher-order thinking skills (z = 4.730; p < 0.001; 95% CI). Funnel plot and Egger's tests did not show publication bias, supported by a fail-safe N value 488. The results of this study reinforce empirical evidence that discovery learning is a practical approach to chemistry learning.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS PROJECT BASED LEARNING PADA MATERI TITRASI KOMPLEKSOMETRI Samosir, Rafidah Almira; Ardila, Mutia
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i1.29923

Abstract

Research on developing project-based learning materials for complexometric titration materials is still rare, despite the fact that these materials have shown promising in chemical education. The objective of this project is to create a complexometric titration learning resource based on Project-Based Learning (PjBL) and assess its viability and efficacy in improving students' psychomotor abilities and learning outcomes. Using the ADDIE paradigm, the study used a Research and Development (R&D) methodology. The media, which includes instructive videos, digital resources, and a useful mini-project, was created with Adobe Flash CS6. 42 chemical education students from Universitas Negeri Medan (UNIMED) participated in a restricted trial after validation by two subject matter experts and two media experts. Subject matter experts and media experts gave the validation results an average score of 3.29 and 3.46, respectively, which both fell into the "highly feasible" category. During the implementation phase, the experimental class outperformed the control group in terms of learning outcomes (gain score of 0.722) and psychomotor skills (average score of 3.64). With an average score of 3.46, students' reactions to the media were likewise very favorable. These results demonstrate that the developed media is useful for enhancing students' engagement in learning complexometric titration, conceptual knowledge, and laboratory skills.
Co-Authors Abd Hakim S Afrilia Tria Ivanka Agnes Aprilyani Br Silitonga Alisya, Syalwa Nur Anna Sakila Ardila, Mutia Br. Hutahuruk, Novitasari Dewi Syafriani, Dewi Dimas Ridho Dindy Louiza Pangaribuan Dira Rahma Cahya Einstenia Sirait Eren Nazura Faizah A. Nasution Feri P. Jahata Samosir Flia Arnesta Sipayung Geby Mai Irawan Gioni Thesia Boru Simbolon Grace Octavia Hutasoit Gresvita Sanova Turnip Harahap, Iza Ida Duma Riris Juwitaningsih, Tita Kurniawan, Ekin Dwi Arif Marbun, Nova Fajria Marham Sitorus Moondra Zubir Muhammad Fadhli Mutia Ardila Najwa Putri L. Nasution Ningsi, Rira Octa Nove Briani Minar Sihombing Nst., Mutiara Agustina Nur, M Rosyadi Izzuddin Okta Miranda Samosir Pratiwi, Alfira Julian Rabiah Afifah Daulay Ramlan Silaban Ratu Evina Dibyantini Ravisa Sari Mawaddah Sari, Dwy Puspita Sazkia Sa’diyah, Halimatus Sianipar, Mirna Wulan Sari Sinaga, Dewi Agustina Sutiani, Ani Tafonao, Firman Satria Tetra Tasya Anggraini Butar Timotius Agung Soripada Trimutia Wulandari Vivy Cintia Laudia Hutagaol