Developing of modified inquiry-based laboratory worksheet on optical topic

Abstract

The aim of this research is to develop a modified inquiry-based laboratory worksheet on opticalal topic as teaching material supporting laboratory activity. Modified inquiry-based laboratory worksheet that is developed consists of 6 practicum title that is simple refractometer, mirror, lens, microscope, spectrometer, and polarimeter. Modified inquiry-based laboratory worksheet is arranged based on stages of inquiry learning that is problem formulation, hypothesis composing, collecting data, data analysis, and conclusion. Developing modified inquiry-based laboratory worksheet is conducted in physics laboratory at Universitas Negeri Jakarta. The research method is used research and development using ADDIE models (Analysis, Design, Development, Implement, Evaluation). Validation is done by material expert, media expert and learning expert and tested to 26 physics college students. The result of validation test shows the percentage of average score of material expert 85.78%, media expert 89.08%, learning expert 93.92%, and the average score of the total validation test results of 89.5% with a very good interpretation. The results of field trials show the percentage average score is 82.28% with very good interpretation. Therefore, it can be concluded that modified inquiry-based laboratory worksheet worthy to be used as a teaching material supporting laboratory activity of physics college student.