Videos to help Grade 4 students learn how to add and multiply unit fractions to build fractions greater than 1
using visual models.

Common Core Standards: 4.NF.1,
4.NF.2,
4.NF.3,
4.NBT.6,
4.NF.4a,
4.MD.4

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Lessons for Grade 4

Common Core For Grade 4

Lesson 23 Concept Development

Problem 1: Multiply a whole number times a unit fraction.

Problem 2: Multiply a whole number times a unit fraction using the associative property.

Problem 3: Express the product of a whole number times a unit fraction as a mixed number.

1. Circle any fractions that are equivalent to a whole number. Record the whole number below the fraction.

a. Count by 1 thirds. Start at 0 thirds. End at 6 thirds.

b. Count by 1 halves. Start at 0 halves. End at 8 halves.

2. Use parentheses to show how to make ones in the following number sentence.

3. Multiply, as shown below. Draw a number line to support your answer.

4. Multiply, as shown below. Write the product as a mixed number. Draw a number line to support your answer.

a. 7 copies of 1 third

b. 7 copies of 1 half

c. 10 x 1/4

1. Circle any fractions that are equivalent to a whole number. Record the whole number below the fraction.

a. Count by 1 fourths. Start at 0 fourths. Stop at 6 fourths.

b. Count by 1 sixths. Start at 0 sixths. Stop at 14 sixths.

2. Use parentheses to show how to make ones in the following number sentence.

3. Multiply, as shown below. Draw a number line to support your answer.

4. Multiply, as shown below. Write the product as a mixed number. Draw a number line to support your answer.

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