Your teacher will give you a scale drawing of a basketball court. Notice students who show insights around this idea so they can share later. It may not be apparent to students that scale drawings prioritize features of one plane of the object (and sometimes features of other planes parallel to it) and ignore other surfaces and dimensions. Like any mathematical model of a real situation, a scale drawing captures some important aspects of the real object and ignores other aspects.
Or that in a scale drawing, a smaller part in the actual object does not end up being larger in the drawing. For example, they might say that a scale drawing looks just like the object it is portraying, with the parts shown having the right size and being in the right places in the drawing. Though students are not expected to come up with precise definitions, they are likely able to intuit that scale drawings are accurate two-dimensional depictions of what they represent, in the sense that all shapes, arrangements of parts, and relative sizes match those of the actual objects.Įxpect student observations about scale drawings to be informal and not mathematical.
This activity encourages students to notice characteristics of scale drawings by observing examples and counterexamples, and to articulate what a scale drawing is.
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