Figure 3. Cumulative test scores for experimental class and control class

From

Project Based Learning in General Chemistry to Develop the Problem-Solving and Creativity

Nguyen Ngoc Tuan, Bui Thi Hanh, Tran Trung Ninh

American Journal of Educational Research. 2020, 8(7), 475-479 doi:10.12691/education-8-7-4