Tolba, E.G.A. and AL-Dhmen, A.A.A. 2024. The effectiveness of the P5BL model in teaching biology for developing high school students’ deep understanding and academic achievement motivation. International Journal of Education and Practice. 12, 2 (Mar. 2024), 336–354. DOI:https://doi.org/10.18488/61.v12i2.3685.