Alkest, N.F.E., Taha, M.E. and Ghalwash, M.M. (2024) “The effect of a proposed unit in science based on PISA standards in developing life problem-solving skills among Prep school students”, Journal of Curriculum and Teaching Methodology, 3(6), pp. 61–85. doi:10.26389/AJSRP.N260224.