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Add and Multiply Unit Fractions




 

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

Related Topics:
Lesson Plans and Worksheets for Grade 4

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More Lessons for Grade 4

Common Core For Grade 4

NYS Common Core Grade 4 Module 5, Lessons 23


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.
Lesson 23 Problem Set 1 & 2

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.



Lesson 23 Problem Set 3

3. Multiply, as shown below. Draw a number line to support your answer.
Lesson 23 Problem Set 4

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


 
Lesson 23 Homework

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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