Lesson Plan: Properties of Rectangles
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to solve problems using the properties of rectangles.
Objectives
Students will be able to
- understand that a rectangle is a quadrilateral with four right angles whose opposite sides are parallel and equal in length,
- calculate the perimeter of a rectangle by adding twice its length to twice its width,
- calculate the area of a rectangle by multiplying its length by its width,
- work backward from the perimeter or area of a rectangle to find a missing side length,
- calculate the length of a diagonal of a rectangle using the Pythagorean theorem,
- solve more-complex problems, such as working out the effect of doubling a rectangle’s length and width on the rectangle’s perimeter and area or constructing and solving a simple algebraic equation for a rectangle given in a word problem or real-world context.
Prerequisites
Students should already be familiar with
- regular and irregular polygons,
- classifying polygons by their number of sides,
- constructing and solving simple algebraic equations,
- the Pythagorean theorem.
Exclusions
Students will not cover
- other types of well-known quadrilaterals apart from squares.
