PENGARUH MODEL PROBLEM BASED INSTRUCTION DENGAN MENGGUNAKAN MEDIA TANGRAM TERHADAP KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA KELAS V PADA MATERI PECAHAN SD NEGERI 51 SINGKAWANG

Abstract

Elementary school students’ mathematical creative thinking ability is the

foundation for student to develop problem-solving abilities with differend and

varied perspective. The study has importand objective, namely: 1) to determine

the effect of the problem-based instruction learning model assisted by tangram

media. 2) to determine the increase in mathematical creative thinking abilities with

the problem-based instruction learning model assisted by tangram media. 3) to

determine the implementation of the problem-based instruction learning model

assisted by tangram media. This study uses an experimental method with post-

test only design. The sample in this study that will be used is 15 students from

class va as the experimental class and 15 studens as the control class. The type

of research use is qualitative with experimental method methods and a

Nonequivalent control group design research design. The total population of both

classes is 47 with a random sampling technique. The prerequisite test uses the

Shapiro Wilk Normality test and the Homogeneity test. Hypothesis testing uses the

Independent sample t-test, Effect Size and implementation sheets. The results of

the study showed 1) the average experimental post-test of 65.07 was higher than

the average control post-test of 41.20. In addition, it can also be seen from the

output of the Independent Sample t-test which has a significance value of Equal

Variances Assumed of 0.001 <0.05. 2) the result of the Effect Size test was 1.673

which is in the very high criteria. 3) the assessment of the implementation

observation sheet was 88% which is in the very high criteria.