Abstrak
<p>The purpose of this stady is to reveal the extent to which STAD type cooperative learning model can improve students' learning activities subject to the algebraic structure 13A Prodi MAT math education UMMY Solok. This research is a classroom action research conducted three cycles. Each cycle consists of four phases: planning, action, observation and reflection. Subjects were students of mathematics education Prodi MAT 13A UMMY Solok with the number of students 22 people. Data was collected through observation sheets lapangan.Teknik student activities and records data analysis used is descriptive analysis. The results showed that all student activity increased from the first cycle to the third cycle. So learning STAD Cooperative Learning Model can increase the activity of the subjects studied algebra structure 13A Prodi MAT math education UMMY Solok.</p>