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Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level

The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.

Green box means correct.

Yellow box means incorrect.

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Grade 4 - Shape and Space

Standard 4.SS.3 - Find the area of a shape using unit squares.

Included Skills:

Demonstrate an understanding of area of regular and irregular 2-D shapes by:

• recognizing that area is measured in square units

• selecting and justifying referents for the units cm² or m²

• estimating area by using referents for cm² or m²

• determining and recording area (cm² or m²)

• constructing different rectangles for a given area (cm2 or m2) in order to demonstrate that many different rectangles may have the same area.

• Achievement Indicators

• Students who have achieved this outcome(s) should be able to:

- Describe area as the measure of surface recorded in square units.

- Identify and explain why the square is the most efficient unit for measuring area.

- Provide a referent for a square centimetre and explain the choice.

- Provide a referent for a square metre and explain the choice.

- Determine which standard square unit is represented by a given referent.

- Estimate the area of a given 2-D shape using personal referents.

- Determine the area of a regular 2-D shape and explain the strategy.

- Determine the area of an irregular 2-D shape and explain the strategy.

- Construct a rectangle for a given area.

- Demonstrate that many rectangles are possible for a given area by drawing at least two different rectangles for the same given area.

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