Investigates how students develop an understanding of chemical representations with the aid of a computer-based visualizing too called eChem that allows them to build molecular models and view multiple representations simultaneously. Involves 11th grade students (n=71) at a small public high school and examines the changes in students'…

This study explores general-chemistry instructors' awareness of and ability to identify and address common student learning obstacles in chemical equilibrium. Reported instructor strategies directed at remediating student alternate conceptions were investigated and compared with successful, literature-based conceptual change methods. Fifty-two…