Resumen de Understanding length × width × height with modified tasks
Dae S. Hong, Cristina Runnalls
In this article, we describe one possible way to modify volume tasks in textbooks to promote conceptual understanding of the volume formula: length × width × height. From the results of previous studies regarding students’ understanding of volume measurement, we identified three conceptual ideas key to understanding volume: filling three-dimensional space with equal-sized units, layer structure, and linking layer structure to the volume formula. Our examination of three popular US textbook series showed that these three conceptual ideas were not well-presented. We conclude with recommendations for one possible way to modify tasks to improve conceptually-based volume instruction.
