# Lesson 6 Rectangles and Squares

Let’s explore what makes a shape a rectangle or a square.

## Warm-up Number Talk: Some Sums

Find the value of each expression mentally.

## Activity 1 Rectangles and Squares

These are rectangles.

What is the same about all these rectangles?

These are not rectangles.

What makes these shapes different from the rectangles?

These are squares.

What is the same about all these squares?

These are not squares.

What makes these shapes different from the squares?

## Activity 2 Draw Rectangles and Squares

## Problem 1

Draw 5 rectangles.

How do you know these are rectangles?

## Problem 2

Draw 3 shapes that are not rectangles.

How do you know these are not rectangles?

## Problem 3

Draw 5 squares.

How do you know these are squares?

## Problem 4

Draw 3 shapes that are not squares.

How do you know these are not squares?

## Practice Problem

## Problem 1

Draw 2 different rectangles and 2 different squares.

How are the shapes the same? How are they different?