Improvement of students' creative thinking skills in optical subject with STEM worksheets

Abstract

Creative thinking skills are a major challenge in education today. Students with good creative thinking skills can certainly compete in the global era. Creative thinking skills need to be trained through STEM learning. This research is focused on improving high school students' creative thinking skills in the optical instrument topic through the development of STEM worksheets. The developed worksheet provides students with experiences designing, creating projects, making videos, uploading assignments, analyzing projects, and discussions. The varied valuable experiences with integrating technology and engineering in learning are advantages of the worksheets developed. These experiences have not been provided in previous worksheets. ADDIE design with five stages is used as a design in worksheet development. Three experts validated the development results; after being declared valid, the readability level was tested on 15 students. The worksheet is implemented in one class with the one-group pretest-posttest design used to measure the practicality and effectiveness of the worksheet. The t-test was used to analyze the differences in creative thinking skills before and after learning physics using a STEM worksheet. The results showed a significant difference in students' creative thinking skills before and after experiencing learning using worksheets developed. The improvement also showed form N-Gain score of 0.16. In conclusion, the results of the STEM integrated worksheet are valid, practical used, and effective for improving students' creative thinking skills. The development of STEM worksheets on different materials needs to be considered.