Penerapan PBL untuk Meningkatkan Keterampilan Berpikir Kreatif Siswa pada Konsep Koloid

Abstract

Students' creative thinking skills are needed in chemistry learning, because some chemistry is contextual. Students' creative thinking skills in Indonesia tend to be low. This research aimed to improve students' creative thinking skills on the concept of colloids by implementing the PBL model. This research used the pre-experimental method with pretestposttest one group design. The sample in this research was all students in one class of XI IPA taken using purposive sampling method. The instrument was used containing 10 valid and reliable essay questions. Data collection techniques were carried out through tests and observation sheets. Data analysts was done descriptively and statitically including n-gain and one sample t test. The results showed that the n-gain value with the medium category on 5 indicators of students' creative thinking skills namely, fluency indicator (0.45), flexibility (0.50), authenticity (0.47), decomposition (0.50), reformulation (0.58). These results were supported with one sample t test obtaining a significance value of 0,00 <0,05 which indicated that H 1 was accepted and H 0 was rejected. From the results of this research, it could be seen that the application of the PBL model might improve students' creative thinking skills on the concept of colloids. The implication of this research was needed for a Problem based learning module that will be able to stimulate students' creative thinking skills.

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