Before learning the concept of area, students may think that the figure with a longer perimeter has a larger size. In this worksheet, students can check this idea by comparing the sizes of a square and a rectangle using cut and paste. An introductory task for the concept of area.
(繁體中文版：http://www.geogebratube.org/material/show/id/1175)
Anthony Or. GeoGebra Institute of Hong Kong.
