The effectiveness of educational design design according to the theory of Ozbal in the acquisition of geographical concepts among the pupils of the fourth primary in the geography and development of their habits of mind . jperc [Internet]. 2018 Jan. 2 [cited 2025 May 8];15(56):72-95. Available from: https://jperc.uobaghdad.edu.iq/index.php/jperc/article/view/165