This article summarizes an investigation into how Flash-based cartoon video tutorials featuring molecular visualizations affect students' mental models of acetic acid and hydrochloric acid solutions and how the acids respond when tested for electrical conductance. Variation theory served as the theoretical framework for examining how students…

Student teachers learned about teaching principles with the help of an instructional program that included classroom animation exemplars, where expert teachers demonstrate how to apply teaching principles to a classroom scenario. Some students learned by solely observing the classroom animations, whereas others were presented with the expert's…