This analysis reveals strong validity and effectiveness of the acid-base module, improving learning outcomes in high school students through problem-based learning.
Key Points
Learning outcomes significantly improved, with an N-gain value of 0.79 indicating high effectiveness.
The module achieved a validity score of 0.89 for content and 0.91 for construct, confirming its reliability.
Development followed a 4-D model, tested for practicality by teachers and students, yielding scores above 86% high category.
Findings support that an acid-base module based on problem-based learning can effectively enhance student learning outcomes.