Assessment of High School Students’ Mental Models of Methane
LU Yi-Ni1, YAN Chun-Geng2, ZHANG Lu1, ZHOU Qing1**
1.School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China;
2.Northwestern Polytechnical University, Xi’an 710072,China
Abstract Using the second-order diagnostic test as the main tool, the mental model construction of “methane” in senior one students was evaluated. Based on the four knowledge points of methane molecular structure, methane stability, methane oxidation reaction and methane substitution reaction, this paper made statistics and analysis on the types of mental models and the proportion of students who hold them, and probed into the related learning difficulties. It was found that students had constructed four kinds of 7 kinds of non scientific mental models.
LU Yi-Ni, YAN Chun-Geng, ZHANG Lu, ZHOU Qing. Assessment of High School Students’ Mental Models of Methane[J]. Chinese Journal of Chemical Education, 2020, 41(5): 6-10.
