Abstract :
This research aim to: to know the existence of influence model study of type
co-operative of STAD ( Student Team Achivement Divission) solid by Lesson Study.
This type research is research of experiment. Population in this research is all class
student of X MA NW Keruak, a number of two class. Research Sampel determined
with technique of Simple Random Sampling. Chosen so that is class student of X IPA
1 as a group taught experiment by using study of type co-operative of STAD solid of
Study Lesson and class student of X IPA 2 as a group taught control by using study
of conventional model. Technique data collecting use double helix test. Hypothesis
test in this research use test of t two side. Pursuant to result of got data analysis with
criterion - t1 / 2a ≤ t count or t count ≥ t1 / 2a that is (- 1,84 ≤ 1,8971 or 1,8971 ≥ 1,84)
hence H0 refused and Ha accepted. So that can be concluded that study of model of
STAD yield result learn which better than study using Conventional model. This
Matter seen from amount of obtained average value that is taught Experiment class
value use model of STAD higher that is 70. While class average value control with
lower conventional model that is 62
Keywords: Type of STAD, Lesson Study, Result of Learning