April 29th Review

Area and Perimeter

​LO: SWBAT solve problems related to perimeter and area of rectangles where dimensions are whole numbers DOL: SW solve problems related to perimeter and area of rectangles where dimensions are whole numbers correctly in 5 out of 6 problems.

To find the perimeter, add the length of ALL sides.

6 + 6 + 6 + 6 = 24

The perimeter of this shape is 24.

24 what? 24 feet

If you walked all the way around this shape you would walk 24 feet.

Fill in the Blanks

What is the perimeter of the square?

Who cares?

If you were building a fence around the outside of your yard, you would need to know the Perimeter

Area

Area is the measure of the inside surface of a shape

To find the area of a rectangle, multiply the length by the width.

Find the Area

The Length (The bottom) is 8

The Width (The side) is 5

Area = Length x Width

8 x 5 = 40

40 what? 40 cm²

That little² means SQUARED

Multiple Choice

Find the Area

• 24

• 24 yards

• 24 yards²

• 22 yards²

Who cares?

If you need to know how much paint to buy to cover a wall, you need to know the AREA

Multiple Choice

The measure of the outside of a shape

• Area

• Perimeter

Multiple Choice

The measure of the inside surface of a shape

• Area

• Perimeter

Multiple Choice

Perimeter is ______ all of the sides lengths together.

• Adding

• Dividing

Multiple Choice

Area is _____ the length and the width side measurements together.

• Multiplying

• Subtracting

Multiple Choice

Problem 1: Read through the problem, and decide if you are finding the perimeter or the area.

Austin’s soccer coach had them warm up by running around the field 2 times. The field measures 60 yards long by 30 yards wide. How far did they run?

• Perimeter

• Area

Stop and Think

• What is my plan?

• What is the important information I need to use to solve? List everything out!

• What operation am I using?

Open Ended

Now solve it!

Austin’s soccer coach had them warm up by running around the field 2 times. The field measures 60 yards by 30 yards. How far did they run? Explain your plan as to how you got your answer. 

Multiple Choice

What is the answer from problem 1?!

• 180 Yards

• 360 Yards

Multiple Choice

Problem 2: Read through the problem, and decide if it is asking for the perimeter or area!

Musab and Harshal built a cabinet shaped like a rectangular prism. The length of the base is 13 inches, and the width of the base is 44 inches. What is the area of the base of the cabinet in square inches?

• Area

• Perimeter

Stop and Think

• What is my plan?

• What is the important information I need to use to solve? List everything out!

• What operation am I using?

Open Ended

Now you get to solve! Problem #2

Musab and Harshal built a cabinet shaped like a rectangular prism. The length of the base is 13 inches, and the width of the base is 44 inches. What is the area of the base of the cabinet in square inches? Explain your answer.

Multiple Choice

What is the answer for number 2?!

• 572 Square Inches

• 560 Yards