Development of Problem-Based Physics Learning Tools: Evaluation of Validity and Practicality

Abstract

This research aims to develop a valid and practical problem-based learning tool for the Independent Curriculum in Physics. The type of research used is Research and Development (R&D) with a 4D development design, consisting of the stages: define, design, develop, and disseminate. The development stage includes creating the learning tool, validation, and practicality testing. Three validators conducted validation testing to assess the learning tool. Practicality testing was carried out to obtain responses from students and teachers and evaluate the learning process's feasibility. The study involved 18 students from class XI Science 1 at a school in the Pringgabaya district as trial subjects. Data collection techniques included validation questionnaires, teacher responses, student responses, and learning feasibility sheets. Data analysis was performed using Aiken's V validity index. The validation test results showed that the learning tool had an average validation score in the "very valid" category, with a validity index > 0.8. The practicality test results included an average student response of 96.39% in the "practical" category, a teacher response of 92.95% in the "practical" category, and the feasibility of the learning process had an average percentage of 88.88% across three learning activities. Therefore, it can be concluded that the problem-based Physics learning tool is valid and practical.