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Triangles


Instructions

For each of the following problems, consider how you would pose the same problem to your students. Would the wording need to change? Would you need to include more pictures? More detailed pictures? But remember we don't want to do TOO MUCH for the student. If we provide too much information, they will not need to think about what the question is asking.

Consider your problem-solving strategy for each of the following investigations. Is there another strategy that you could use? If so, which strategy would be more appropriate for understanding the concept?


Definition

Any three-sided figure is called a triangle. Think about the shape of a sail on a boat, the face of a pyramid, a Doritos chip, and a yield road sign. Notice that the shapes above do not all look alike, but they do all have one thing in common. What is it?