Students learn how to find the perimeter of 2D shapes.
Learning progresses from counting the distance around the edge to finding missing lengths of composite shapes.
Differentiated Learning Objectives
- All students should be able to calculate the perimeter of a shape when all lengths are known.
- Most students should be able to calculate the perimeter of a shape by calculating unknown lengths.
- Some students should be able to write the perimeter of a shape as an algebraic expression.