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Writing about similar triangles
Here is an example of a calculation and writing task.
In the following set of triangles, which one is not similar to the other three? Write an explanation with your answer.
Similar or not?
When asking students to complete questions like this, make it clear that you expect not only answers but also written reasons for each response. It will take students longer, but you will be able to see and evaluate their levels of thinking about set tasks.
