A. Al Abed and M. Al Baba, “The Effect of Using Roger Bybee Model on Understanding Arithmetic Operations on Regular Fractions and Decimals for sixth Graders ”, Edu, vol. 47, no. 2, pp. 1–18, Jun. 2020, Accessed: Nov. 02, 2026. Available: https://dsr.ju.edu.jo/index.php/Edu/article/view/2163