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The Study of Science Learning Achievement of Grade 6 Students Toward Problem Based Learning Approach
(มหาวิทยาลัยราชภัฏวไลยอลงกรณ์ฯ, 2017)
The purposes of this research were 1) to compare the science learning achievement of
grade 6 students after studying with problem – based learning approach with the criterion of
70% of full marks. The sample was a group ...