# Lesson Plan: Properties and Special Cases of Parallelograms Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use the properties of a parallelogram and identify the special cases of parallelograms along with their properties.

#### Objectives

Students will be able to

• identify quadrilaterals that are parallelograms,
• recognize the following properties of a parallelogram:
• opposite sides are parallel,
• opposite sides are equal in length,
• opposite angles are equal in measure,
• the sum of two adjacent angles is ,
• the diagonals bisect each other,
• use the properties of parallelograms to find missing lengths or angles,
• identify the following special cases of a parallelogram:
• rectangles,
• rhombuses,
• squares,
• solve problems involving the special cases of parallelograms.

#### Prerequisites

Students should already be familiar with

• finding the perimeter of a parallelogram.

#### Exclusions

Students will not cover

• finding the area of a parallelogram.