Materials:
• Pencils
• Grid Paper
• Math Journal

Objectives for 3rd Grade:
3)3.4 identify perimeter and area of regular and irregular figures by counting units.

Procedure:

Teacher will introduce the concept of perimeter by asking… What do you think perimeter is? If perimeter means around, what do you think we should measure? After discussing the concept of perimeter, Teacher will model for students how to measure perimeter of a figure which is different or sides that are not equal by adding each side up. Teacher will practice finding the perimeter with students by drawing different shapes on grid paper ( the large primary kind) and having the students add each side up. After practicing together, students will work individually to find the perimeter of specific figures given by the teacher.

Math Journal:
How can knowing how to find the perimeter help you?