Endang Susilaningsih, - (2018) Problem Based Learning On Environmental Chemistry With Article Products To Improve Student Knowledge. Journal of Engineering Science and Technology, 13. pp. 23-30. ISSN 1823-4690

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Abstract

Style of the teaching chemistry course is teacher centred approach and cause the less student performance assessment that will effects the student creativity development. The aims of this research is to apply the problem based learning on the environmental chemistry course with structured task to improve the students’ knowledge. This research was conducted experimental study by using the pre-and post-test control group design. The sample of this research is the chemistry education student who took a course in the environmental chemistry which started the student batch from year 2015-2016. Class A is chose as the treatment group whiles the class B as the control group. Data were obtained from observation and pre- and post-tests. Descriptive statistics used in this study include mean value and N-gain. The test result shows the mean value score test of the post-test treatment group is 83.07 which is higher than the control group obtained 77.80. N-gain results showed that there were significant of result test student knowledge after the treatment where the treatment group is increase by 0.73 (high criteria) as compared to control group achieved 0.67 (middle criteria). Based on these results, it can be concluded that the Problem Based Learning approach improve the tool teaching and increase the student understanding on the environmental chemistry course.

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