Area and Perimeter Concepts for 3rd Graders

What is perimeter?

• The total length around (outside) of a shape

• The space within (inside) of a shape

• A side length of a shape

• The total number of unit square in a shape

What is area?

• The space within (inside) of a shape

• The total length around (outside) of a shape

• All of the sides of a shape added together

• A side length of a shape

What is the break apart strategy?

• Breaking shapes into smaller rectangles to help find the area

• Adding together each side length to find the perimeter

• Counting every single square to find the area

• Multiplying the length and width of a rectangle or square

Tags

CCSS.3.MD.C.6

What are unit squares?

• Squares used to measure area

• A side length of a shape

• Amount of space inside of a shape

• Amount of length outside of a shape

Tags

CCSS.3.MD.C.5A

How do you use multiplication to help you find the area of rectangles?

• Multiplying the length by the width of the shape

• Adding together the side lengths of shape

• Dividing a shape into different parts

• Counting every square to find the area

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

What is the perimeter of this shape?

• 20 units
• 20

• 15 square units

• 15 units

Tags

CCSS.4.MD.A.3

What is the area of this shape?

• 21 square units
• 21 units

• 21

• 21 square inches

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Mrs. Carol's garden is 4m by 6m. She wants to build a fence to put around her garden. Should she find the perimeter or area?

• Perimeter
• Area

• Angle

• Length

Mrs. Carol's garden is 4m by 6m. She needs to know how much space she has to plant vegetables. Should she find the perimeter or area?

• Area
• Perimeter

• Side

• Mass

Mrs. Carol's garden is 4 meters by 6 meters. What is the area of her garden?

• 24 square meters

• 24 square units

• 20 units

• 20 meters

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B