Multiple representations of work-energy processes

An energy process can be represented by verbal, pictorial, bar chart, and m athematical representations. This multiple-representation method for work-e nergy processes has been introduced and used in the work-energy part of int roductory college physics courses. Assessment indicates that the method, es pecially the qualitative work-energy bar charts, sen es as a useful visual tool to help students understand work-energy concepts and to solve related problems. This paper reports how the method has been used to teach work-ene rgy concepts, student attitudes toward this approach, and their performance on work-energy problems. (C) 2001 American Association of Physics Teachers .