STEM-Integrated Student Worksheets on Space Figure Using the Discovery Learning Model for Elementary School Students

This study aimed to develop student worksheets on cubes and rectangular prisms that were integrated with the science, technology, engineering, and mathematics approach for elementary school students. It is a research and development study that used the ADDIE model, which consists of five stages: (1) analysis, (2) design, (3) development, (4) implementation, and (5) evaluation. The test subjects in this study were fifth-grade students of SDN 3 Bengkulu, who were from two classes of 22 students each. The research instruments consisted of a validation sheet, a student assessment sheet, and a learning outcome test sheet. Data were collected through document analysis, interviews, questionnaires, and tests. The data analysis techniques consisted of expert validity and reliability tests. Results of a product effectiveness test were analyzed using an average difference test involving an experimental group and a control group. The analysis results were as follows: in terms of feasibility in the material aspect, an average Aiken's V score of 0.92 (very valid) and an average validator agreement percentage of 0.86% (high) were obtained; in terms of feasibility in the language aspect, an average Aiken's V score of 0.86 (very valid) and an average validator agreement percentage of 0.90% (high) were obtained; and in terms of feasibility in the presentation and graphic aspect, an average Aiken's V score of 0.83 (very valid) and an average validator agreement percentage of 0.90% (high) were obtained. The STEM-integrated, discovery-learning-based student worksheets were effective at improving the students' learning outcomes. Results of an independent t-test showed that the significance value of each group was 0.000, which was 0.05.