Vysotskaya, Elena, Svetlana Khrebtova, and Iya Rekhtman. “Linking Macro and Micro through Element Cycle: Desing Research Approach for Introdutory Chemistry Course for 6-7 Grades”. LUMAT: International Journal on Math, Science and Technology Education 3, no. 3 (July 30, 2015): 409–428. Accessed March 29, 2024. https://journals.helsinki.fi/lumat/article/view/1038.