THE IMPLEMENTATION OF PROBLEM BASED LEARNING MODEL INTEGRATED WITH STAD (STUDENT TEAM ACHIEVEMENT DIVISION) TO IMPROVE STUDENT’S ACHIEVEMENT AND TEAMWORK ON SOLUBILITY AND SOLUBILITY PRODUCT SUBJECT MATTER IN SENIOR HIGH SCHOOL GRADE XI ACADEMIC YEAR 2015/2016

The objectives of this research are (1) to investigate whether the student’s
achievement that taught by PBL model integrated with STAD is significant higher
than taught by STAD (2) to investigate whether the student’s teamwork character
that taught by PBL model integrated with STAD significant higher than taught by
STAD (3) to investigate thesignificant correlation between student’s teamwork
character with student's achievement (4) to describe the average percentage of
student’s achievement that developed by applying PBL model integrated with
STAD compared with STAD (5) to describe the average percentage of student’s
teamwork character that developed by applying PBL model integrated with STAD
compared with STAD. Sample was chosen by purposive sampling and taken 2
classes in SMA Panca Budi Medan, one class as experiment class and the other is
as a control class. The research instrument that was used in this research consist of
test instrument (evaluation test) and non test instrument (observation sheet). The
research instrument in this research are 20 multiple choice questions from 40
questions that had been validated by validator and students. Research result show
that the average of posttest in experiment class is 88.50±4.46with gain 0.78 (high)
and the average of posttest in control class is 80.13±4.71with gain 0.69 (medium).
The data of research had been analyzed by using normality test and homogeneity
test, which is shown that data gain are normal distributed and homogeneous. The
hypothesis testing was tested by using Independent Sample T-test with One Tailed
T-test and for correlation was tested by using regression with liner in SPSS-17 for
windows. The research result are (1) the student’s achievement that taught by
PBL model integrated with STAD is significant higher than the student’s
achievement that taught by STAD (Sig = 0.013) (2) student’s teamwork character
that taught by PBL model integrated with STAD is significant higher than the
student’s achievement that taught by STAD (Sig = 0.041) (3) there is significant
correlation between student’s teamwork character with student's achievement (Sig
F Change for both class is = 0.00) (4) the average percentage of student’s
achievement in experiment class is 78% and in control class is 69% (5) the
average percentage of student’s teamwork in experiment class is 61,01% and in
control class is 58.32%.