The Effectiveness of A Proposed Educational Design To Develop The Systematic Thinking Skills of Students In Colleges of Education In The Subject of Curricula And Teaching Methods. cbej [Internet]. 2025 Dec. 17 [cited 2026 Jun. 24];30(133):399-414. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/14053