Identifying Unit Fractions in Partitioned Shapes

This lesson teaches how to identify unit fractions using shapes. It explains that any two-dimensional shape, such as triangles, circles, squares, or rectangles, can be divided into equal parts to represent fractions. The video provides examples using a triangle, rectangle, and circle to illustrate how each part represents a unit fraction, with the numerator being the number of shaded parts and the denominator being the total number of parts. The lesson concludes by reinforcing the concept of using shapes to understand fractions.

What can be used to represent one whole in the context of fractions?

• Shapes

• Letters

• Numbers

• Colors

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

If a triangle is divided into two equal parts, what fraction does each part represent?

• One-fifth

• One-fourth

• One-half

• One-third

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CCSS.1.G.A.3

In the rectangle example, how many parts is the whole divided into?

• Two

• Three

• Four

• Five

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CCSS.1.G.A.3

What fraction of the rectangle does one shaded part represent?

• One-half

• One-sixth

• One-third

• One-fourth

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CCSS.2.G.A.3

How many sections is the circle divided into in the example?

• Two

• Three

• Five

• Four

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CCSS.1.G.A.3

What fraction does the shaded section of the circle represent?

• One-half

• One-third

• One-fourth

• One-fifth

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CCSS.1.G.A.3

What is the numerator in a unit fraction?

• The total number of parts

• The number of shaded parts

• Zero

• One

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CCSS.3.NF.A.1

CCSS.3.NF.A.2A

What does the denominator in a fraction represent?

• The number of shapes used

• The number of parts used

• The total number of parts in the whole

• The number of unshaded parts

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Which shape was not mentioned in the lesson for representing fractions?

• Hexagon

• Circle

• Rectangle

• Triangle

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CCSS.3.NF.A.1

CCSS.3.NF.A.2A

What key concept is emphasized through the use of shapes in teaching fractions?

• Unit fractions

• Subtraction

• Division

• Multiplication

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B