THE EFFECT OF PROBLEM BASED LEARNING STRATEGY COMBINED BY JIGSAW TOWARDS CRITICAL THINKING ABILITY

Abstract

The current problem of education is that students are less trained to develop their thinking
capabilities. This is because teachers still consider giving information is more important than
training the ability to think. One of the learning strategies that can train students to be able to learn
independently and train high-level thinking capability is the Problem Based Learning strategy
combined Jigsaw. The research aims to know the effect of Problem Based Learning strategy
combined by Jigsaw towards critical thinking ability in the tenth grade students of Senior High
School in Jember district. The research design was quasi-experiment. Pre-test and post-test non-equivalent control groups design was implemented. The population of this research is all of tenth
grade students of senior high school in Jember in the academic year 2014/2015. The sample of this
research is the students of 10
th
Natural Science (IPA) 3 class as the control group, and then 10
th
IPA
1, 10
th
IPA 2, and 10
th
IPA 4 as the experimental group. The technique of collecting sample was done
by using simple random sampling. The data was taken by giving essay test. Moreover, the
Hypothesis of the test was using Anakova’s formula. Before doing the hypothesis test, normality
test was implemented by using Kolmogorov-Smirnov Anakova’s formula, and the homogeneity test
was carried out by Levene’s Test formula to know whether the distribution is normal and
homogenous. Thus, based on the data analysis result and discussion, it can be concluded that result
of Anacova test showed that the critical thinking ability has p value = 0.729 bigger than α = 0.05,
which showed that learning strategy did not exert any influences towards critical thinking capability.
Keywords: problem based learning, jigsaw, critical thinking