Organization and Presentation of “The Existence of Particles” Contents in Japanese Junior High School Science Textbooks
LI Ting-Ting1,2, WANG Xiu-Hong1, LI Yan-Long3
1. Department of Education, Northeast Normal University, Changchun 130024, China;
2. College of Chemistry, Northeast Normal University, Changchun 130024, China;
3. Jilin Provincial Experimental School, Changchun 130021, China
