This classroom activity helps students see the connection between the distance formula and the Pythagorean Theorem when finding distance on the coordinate plane. Students examine the work of two different students who solved the same problem finding the distance between two coordinate points, one using the distance formula and one using the Pythagorean Theorem. Then students try out each method, and compare and contrast them.
This activity is a great way to implement math practice #3, construct viable arguments and critique the reasoning of others, while reviewing or learning the distance formula at the same time.
There is also a short practice worksheet for finding distance between two ordered pairs, as well as a short exit ticket to assess student understanding.
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