Lesson Plan
Finding Perimeter
In this lesson, students will find the perimeter of figures using cheese crackers. Next, they'll design a floor plan for their cheese cracker dream house, to help them practice and retain the formula for finding perimeter.
Grade:
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Learning Objectives
Students will be able to find the perimeter of a given geometric figure.
Introduction
(10 minutes)- Play the video Perimeter, by Math Antics, for the class to introduce the concept of perimeter.
- Once the video is complete, ask for a volunteer to tell you the definition of perimeter.
- Write the definition on the board.
- Draw a few figures on the board, along with the lengths of their sides.
- Challenge students to find the perimeter of the geometrical figures you’ve drawn.
- Each time a student answers, correctly or incorrectly, explain the reasoning behind each figure’s perimeter.