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Khamali, Jairus Bulimo
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Chemistry Education Social Sciences Other

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The Effect of Flash-Based Learning Media on Students’ Achievement in Learning Atomic Structure in Kenyan Senior High Schools Khamali, Jairus Bulimo; Mondoh, Helen Omondi
Journal of Chemical Learning Innovation Vol. 2 No. 2 (2025): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v2i2.2584

Abstract

Purpose of the study: This study aims to investigate the effect of Flash-based learning media on students’ learning achievement in chemistry, particularly on the topic of atomic structure, in Kenyan senior high schools. Methodology: The study employed a quasi-experimental research design using a pretest–posttest control group approach. The participants consisted of 84 Grade 10 students from a public senior high school in Kenya, divided into an experimental group and a control group. The experimental group was taught using Flash-based learning media featuring animated visualizations of atomic models, subatomic particles, and electron configurations, while the control group received conventional instruction. Data were collected using a validated chemistry achievement test and analyzed using an independent samples t-test. Main Findings: The results showed that students who learned using Flash-based media achieved significantly higher posttest scores than those taught using conventional methods. The statistical analysis revealed a significant difference between the experimental and control groups (t = 3.24, p < 0.05), indicating that Flash-based learning media had a positive effect on students’ achievement in learning atomic structure. Novelty/Originality of this study: This study provides empirical evidence on the effectiveness of Flash-based learning media in chemistry education within the Kenyan context, which remains underexplored. The findings highlight the potential of interactive multimedia to enhance students’ conceptual understanding of abstract chemistry topics and support the integration of digital learning media in secondary science education in developing countries.
The Effect of Flash-Based Learning Media on Students’ Achievement in Learning Atomic Structure in Kenyan Senior High Schools Khamali, Jairus Bulimo; Mondoh, Helen Omondi
Journal of Chemical Learning Innovation Vol. 2 No. 2 (2025): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v2i2.2584

Abstract

Purpose of the study: This study aims to investigate the effect of Flash-based learning media on students’ learning achievement in chemistry, particularly on the topic of atomic structure, in Kenyan senior high schools. Methodology: The study employed a quasi-experimental research design using a pretest–posttest control group approach. The participants consisted of 84 Grade 10 students from a public senior high school in Kenya, divided into an experimental group and a control group. The experimental group was taught using Flash-based learning media featuring animated visualizations of atomic models, subatomic particles, and electron configurations, while the control group received conventional instruction. Data were collected using a validated chemistry achievement test and analyzed using an independent samples t-test. Main Findings: The results showed that students who learned using Flash-based media achieved significantly higher posttest scores than those taught using conventional methods. The statistical analysis revealed a significant difference between the experimental and control groups (t = 3.24, p < 0.05), indicating that Flash-based learning media had a positive effect on students’ achievement in learning atomic structure. Novelty/Originality of this study: This study provides empirical evidence on the effectiveness of Flash-based learning media in chemistry education within the Kenyan context, which remains underexplored. The findings highlight the potential of interactive multimedia to enhance students’ conceptual understanding of abstract chemistry topics and support the integration of digital learning media in secondary science education in developing countries.
Integrating Occupational Health and Safety (OHS) into Chemical Laboratory Learning: A Mixed-Method Study on Students’ Safety Awareness and Practices Dachia, Hassan Abdullahi; Khamali, Jairus Bulimo; Kumabia, FKR
Journal of Chemical Learning Innovation Vol. 3 No. 1 (2026): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v3i1.2977

Abstract

Purpose of the study: This study aims to analyze students’ occupational health and safety (OHS) awareness and practices in chemical laboratory learning and to evaluate the effectiveness of integrating OHS principles into laboratory instruction to reduce safety risks and improve compliance. Methodology: This study employed a mixed-method approach using structured questionnaires, observation sheets, semi-structured interviews, and document analysis. Data were collected from undergraduate chemistry students. Quantitative data were analyzed using descriptive statistics, while qualitative data were analyzed through thematic analysis. Job Safety Analysis (JSA) was applied as a risk assessment tool. Main Findings: The results showed that 78% of students received safety training, but only 34% could identify hazard symbols correctly. Compliance with safety practices was low, including fume hood usage (25%) and chemical waste disposal (10%). JSA results indicated that 19% of laboratory activities were categorized as high to extreme risk levels. Novelty/Originality of this study: This study provides a novel integration of Job Safety Analysis (JSA) into chemical laboratory learning to systematically identify risks and improve safety practices. It also offers an evidence-based approach for embedding OHS into the curriculum, contributing to the development of a proactive laboratory safety culture.
Co-Authors Dachia, Hassan Abdullahi Kumabia, FKR Mondoh, Helen Omondi