Finding Area Counting Squares

What is the total area of the pink model?

• 3 units squared

• 4 units squared

• 7 units squared

• 12 units squared

Tags

CCSS.3.MD.C.6

Each square in this rectangle equals 1 inch. How do you find the area? 

•  There are 7 rows and 8 columns, so you should add 7 + 8 to get 15 total blocks.
• There are 8 columns and 7 rows, so you should subtract 8 – 7 to get 1 rectangle
• . There are 7 rows and 8 columns, so you should multiply 7 × 8 to get 56 square inches
• D. There are 8 columns and 7 rows, and you add the 8 from top and bottom and the 7 from both sides to get 8 + 8 + 7 + 7 to get an area of 30.

Tags

CCSS.3.MD.C.5A

What does area mean?

• the distance around a shape
• half the distance around a shape
• the amount of space outside a shape
• the amount of space inside a shape

Which shape has an area of 18?

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Tags

CCSS.3.MD.C.6

4. What is the area of the shaded portion?

• 10 square units
• 13 square units
• 30 square units
• 20 square units

Tags

CCSS.3.MD.C.6

Lilly wants to find the area of this piece of glass using gray square tiles. Each tile has the area of 1 square unit. Which models show a way that Lily could find the area of the piece of glass?

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Tags

CCSS.3.MD.C.5A

An artist paints a rectangular board using gray paint. Each square is 1 square foot. What is the area of the rectangle that the artist has painted gray?

• 16

• 20

• 4

• 5

Tags

CCSS.3.MD.C.5A

Vince says the area of this shape is 4 square units. Is Vince correct? Choose the best explanation!

• Yes, Vince is correct because I count four gray rectangles, so the area is four square units

• Yes, Vince is correct because he used four squares to fill in his shape, so the area is four square units.

• No, Vince is wrong because he used more than four square units to fill his shape.

• No, Vince is wrong because he used rectangles and not squares to fill his shape.

Tags

CCSS.3.MD.C.5A

When can we use area in real life?

• We can use area to find out how much fabric we need to make a blanket to fit on our bed.

• We can use area to find how much boarder we need to go around the outside of a bulletin board.

• We can use area to find out how much paint we need to cover a wall.

• We can use area to find out how much string we need to cut to make a bracelet for our wrist.

What is the area of this shape?

• 36

• 36 square units

• 32

• 32 square units

Tags

CCSS.3.MD.C.6