Abstract:
This study deals with the effect of applying problem based learning toward
students' critical thinking in writing news on education. The objective of the
study was to investigate whether problem based learning significantly effect the
students' writing achievement. The populatian of this research was the second year
students of SMP PAB 8 Sampali, in academic year 2016/2017. The number of
population was 60 students and the researcher was taken VIII-I as the sample.
This study was conducted by using an experimental research design. The
experimental group was given treatment by applying problem based learning .The
instrument of the research was an written test. The test given to students aimed to
collect the data sporting the students ' mastery in writing. The t-test formula was
impelmented to find out the t-observed value of this research showed that the tobserved hypothesis of this research. The result of this rese arch showed that the tobserved value was greater than the t-table in which tobs was 9,69 and ttable 2,05
in a = 5% = 0.05. It shows that tobs > ttable (9,69>2,05). The hyphotesis was
accepted. It means that there was any significant effect of applying problem based
learning toward students' critical thinking in writing news on education. Total of
significant effect was 77,44% and 22,56% from the factor.
