Exploring Perimeter and Area of Rectangles

Mrs. Nasin's lesson covers the perimeter and area of rectangles and squares. It begins with learning targets and vocabulary, followed by detailed explanations of perimeter and area, including how to calculate them. The lesson adapts these concepts for squares and includes practice problems. It concludes with a comparison of rectangles with the same area but different perimeters, emphasizing the variability of perimeter with constant area.

What are the learning targets for the lesson on perimeter and area?

• To understand and apply perimeter and area calculations

• To memorize formulas for perimeter and area

• To draw rectangles and squares only

• To calculate volume of rectangles

What unit is used to measure the perimeter of a shape?

• Units of weight

• Units of length

• Cubic units

• Square units

How do you calculate the area of a rectangle?

• Divide length by width

• Multiply all sides

• Multiply length by width

• Add all sides

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the perimeter of a square if one side is 3 units?

• 12 units

• 9 units

• 6 units

• 3 units

Tags

CCSS.4.MD.A.3

How is the area of a square calculated differently from a rectangle?

• Square uses length plus width

• Square uses perimeter divided by 4

• Square uses side times side

• It is not different; both use length times width

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the area of a rectangle with length 6 inches and width 3 inches?

• 9 square inches

• 18 square inches

• 15 square inches

• 12 square inches

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

If a rectangle has an area of 20 square centimeters, which could be a possible set of side lengths?

• 4 by 6

• 1 by 20

• 2 by 15

• 3 by 8

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the perimeter of a 2 by 10 rectangle?

• 20 centimeters

• 22 centimeters

• 24 centimeters

• 26 centimeters

Tags

CCSS.4.MD.A.3

Which statement is true about rectangles with the same area?

• They have different perimeters

• They cannot be rectangles

• They have the same perimeter

• They are always squares

Tags

CCSS.3.MD.D.8

What is the perimeter of a 4 by 5 rectangle?

• 22 centimeters

• 24 centimeters

• 20 centimeters

• 18 centimeters

Tags

CCSS.4.MD.A.3