Development of a Chemistry-Literacy-Oriented e-Module on Biobatteries for Pre-Service Chemistry Teachers

Abstrak

The electrochemical cell is one of the most challenging topics in senior high school chemistry learning. Teaching materials oriented toward chemical literacy are needed to help students connect chemical concepts with real-life situations. This study aimed to produce and evaluate a chemical-literacy-oriented e-module on biobattery fabrication using Design-Based Research (DBR) through three phases: analysis-exploration, design-construction, and evaluation-reflection. The e-module was developed using Articulate 360 with six sequential units integrating the four dimensions of chemical literacy. The product was validated by three experts (Pearson's r = 0.87, critical value 0.30) and field-tested with 15 pre-service chemistry teacher students, measured with a 10-item test analyzed via N-Gain and a Wilcoxon signed-rank test. The feasibility test was very feasible (96.31%), and chemical literacy increased significantly overall (N-Gain = 0.77, p < 0.001), with the highest gain on content (g = 0.875), followed by process (g = 0.692), context (g = 0.600), and attitude (g = 0.571); the latter two were not statistically significant, likely due to a ceiling effect at pretest. This study is limited to a small-scale trial without a control group, so implementation with senior high school students and strengthened process-based activities are recommended for future research.

Kata kunci

• Biobattery
• Chemical literacy
• Chemistry Education
• Design-Based Research
• E-Module
• Electrochemistry cell