This study aims to describe improving the STAD learning model to improve student learning outcomes and student responses. This research was applied to 29 students of class VIII-D Semen Gresik Junior High School. The research design used was one group pretest posttest design with data collection methods using test, questionnaire and observation methods. The research instruments in this study were the implementation of learning sheets, pretest questions, and student response questionnaire sheets. The results obtained from this study are an increase in learning outcomes through the calculation of N-Gain with an average value of 0.85 in the high category and shows the effect on the STAD method in student learning outcomes. Overall student responses in learning activities using the STAD method showed very positive results with an average percentage of 92% and the application of the STAD learning method was very good at meetings I and II. Based on the analysis of the research data, it can be concluded that there is an increase in learning outcomes through the STAD type cooperative learning model in the material of the human digestive system.