| Summary: | ABSTRACT
This study aimed to (1) reveal the increase in analysis and synthesis of students
through the implementation of cooperative learning approaches with the Problem Based
Learning (PBL) method, (2) find out the learning problems experienced by students and
their solutions. This research was conducted with the stages similar to classroom action
research consisting of: (1) action planning (plan), (2) implementing the action (do) and
(3) observation and reflection (see). The subjects of the research in this study were the
fourth semester students of History Education Study Program in the academic year
2018/2019, as many as 26 students. This research was conducted in February-June
2019. The subject taken in this study was A Study of Curriculum and Textbooks. Data
collection techniques were done by interview, observation and literature study.
Triangulation was employed to validate the data, namely, (1) source or data
triangulation, (2) method triangulation, and (3) theory triangulation. The data obtained
were then analyzed using qualitative descriptive through four stages, consisting of; data
collection, data reduction, data presentation and drawing conclusions or verification.
The results of this study indicated that in the first cycle the average of synthesis analysis
thinking ability in the group category was 61.1% in the fair category and 38.9% in the
good category, in the second cycleit increased to 50% in the good category and 50%
good enough category. In the individual category 50% are in the fair category, 38.5%
in the good category and 11.5% in the poor category, while in the second cycle, it raised
to 53.8% in the good category, 34.6% in the fair category, and 11.5% in the poor
category. Furthermore, in the cycle III the mean of synthesis analysis thinking ability for
the group category was 94.4% in the good category and 5.6% in the fair category. In
the individual category 65.4% was in the good category and 34.6% was in the fair
category. Based on these results, it could be concluded that the increase of students’
synthesis analysis thinking ability in group was quite good, including for individual
abilities. The lack of students’ interest in reading became a major factor in other
research findings.
Keywords: Problem Based Learning (PBL), lesson study, analytical and synthesis
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