The aims of this study was to improve output comprehension concept vast unit conversion using an cooperative learning model with type Student Teams Achievement Divisions (STAD). The kind of this study was action class research (ACR), teacher as a learning executor then student as a learning observer. This study used 2 cycle action class. Every cycle consisted of four stage that is planning, action implementation, observation and evaluation. This study was held on even semester, on February. The subject of this study was student at VI Mina class SD Islam Al Azhar 17 Bintaro consist of 35 students. The data obtained from observation, interviewed and written test. Data analysis used descriptive and presented in a table. The study indicated increase comprehension concept vast unit conversion of student. The first cycle showed 63% student’s score above Minimum Completeness Criteria (MCC), then on second cycle the student’s score increased up to 100% above MCC. Accordingly, cooperative learning model Student Teams Achievement Division (STAD) application can improve comprehension concept vast unit in math story telling question.
Big West Oil lets contract for unit revamp at Utah refinery; Includes HF-to-ISOALKY alkylation unit conversion
