Dr. Hanan Salem Al Amer 2021. The Effectiveness of using Flipped Learning in Solving Homework Problems among Middle Second-Grade Intermediate Students from the point of view of Mathematics Teachers in Riyadh. Journal of Arts, Literature, Humanities and Social Sciences. 66 (Apr. 2021), 273-298. DOI:https://doi.org/10.33193/JALHSS.66.2021.465.