Toothpicks

Students build on what they know from Units 1 and 2 about scaled copies and proportional relationships. They examine the relationship between the side length of a square and its perimeter, as well as the relationship between the diagonal of a square and its perimeter, both of which are proportional.

By Desmos Classroom

Learning goals: Learning Goals • Explain whether or not the relationship between a side length or a diagonal of a polygon and its perimeter is proportional. • Use proportional relationships to determine missing side lengths, diagonals, and perimeters.