Abstract:
Posed mathematical skills in students is a contribution to the achievement of the mathematics skills they want to accomplish. In fact, the low math scores of fourth grade students' SDN 012 Tambak, Langgam Sub District, Pelalawan District, in the even semester of the academic year 2011/2012. make math lessons into lessons that are not fun and not understood by the students. Based on these issues, conducted this study using the implementation of cooperative learning type Student Teams Achievement Divisions which aims to increase the value of their learning outcomes in terms of subject matter fractions, order, and fractional arithmetic operations. The research was conducted in class IV SDN 012 Tambak, the number of students by 19 people consists of 9 male students and 10 female students. By using two cycles, this study begins from the date of 21 May to 7 June 2012. The activity and students learning outcomes data were gained by collecting activity data by using observation sheet and daily test. Analysis of the data used is descriptive statistical analysis that describes the activities of teacher and students, analysis of learning outcomes and succesful measurements. All groups in cycle I and II, was awarded the Super category. The results of the first cycle found that the percentage of students who achieve mastery Minimum criteria (≥ 65) was
84.2% and the second cycle was 89.5%, which increased the percentage of the previous measures only 63.2%. The conclusion of this study indicate that cooperative learning model model type Student Teams Achievement Divisions (STAD) can improve students' mathematics learning outcomes.
