Microworlds: Options for Learning and Teaching Geometry
Joseph F. Aieta · Mathematics Teacher Learning and Teaching PK-12 · 1985
What is the least common multiple of 54 and 360? You probably came up with the answer in a few seconds or even sooner if you have worked with turtle graphics recently! In any case, if the first number was 254 instead of 54, most of us would reach for paper, pencil, and even a calculator. How do you draw the bisector of an angle? Most likely, you would first locate a straightedge and compass or protractor, depending on the context of the problem. For each of these questions, a natural first step is to select appropriate tools.