Application of STAD Cooperative Learning of Primary

Based on observations made by researchers in class IIc SDN Klakahrejo I-578 Surabaya, some problems were found including that learners did not concentrate on learning and were passive in groups while the teachers did not use learning model. 67% students did not complete the materials. To improve these problems, teachers need to apply STAD video-assisted media. This is a classroom action research conducted in two cycles. The cycle begins with preliminary. Each cycle consists of planning, action/observation, reflection, and revision. The finding shows that the implementation of video-assisted STAD can improve learners' learning activities and outcomes. In the first cycle, students' activity reached 78.25%, and classical completeness reached 73%. In the second cycle, students' activity is 84.03% while the learning outcomes is only 83%.