DING Yuan-Mei1, WANG Gui-Qin2, ZHANG Xiao-Yan3, ZHENG Chang-Long4*, CHEN Bin5
1. Dandong No.4 Middle School, Dandong 118000, China;
2. Dandong Teachers Training College, Dandong 118000, China;
3. Teacher Education Research Institute, Northeast Normal University, Changchun 130024, China;
4. Institute of Chemistry Education, Northeast Normal University, Changchun 130024, China;
5. School of Chemistry, Northeast Normal University,Changchun 130024, China