Mohamed A. The aims of this research is to identifying the impact of teaching optics , by using virtual laboratory and multimedia , on the visual thinking skills of fourth scientific grade students. JEH [Internet]. 2022 Jan. 1 [cited 2025 Sep. 10];2(5):355-84. Available from: https://edusj.uomosul.edu.iq/index.php/jeh/article/view/43306