Alkest, Naglaa Fauzy Esmaeil, Mahmoud Ebrahim Taha, and Mohamed Mostafa Ghalwash. 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): 61-85. https://doi.org/10.26389/AJSRP.N260224.