Abstract Based on the importance of plausibility in concept transformation, this paper introduces the MEL (model evidence link) teaching scaffolding that pays attention to the matching relationship between evidence and concept, and explains its role in supporting the reassessment of concept plausibility and promoting the effective completion of concept transformation teaching. By analyzing the constituent elements and presentation forms of MEL scaffolding, a classroom teaching mode suitable for chemical concept transformation teaching is developed. Taking the typical theme “the dynamics of chemical equilibrium” which is easy to produce alternative concept as a teaching design case, the concept transformation teaching mode based on MEL is put into practice and explained.
YANG Xiao, ZHAN Xiao-Hong. Teaching of High School Chemistry Concept Transformation Based on MEL Scaffold:Dynamics of Chemical Equilibrium[J]. Chinese Journal of Chemical Education, 2022, 43(19): 71-76.