Unit Fractions

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Lesson Plans and Worksheets for Grade 3
Lesson Plans and Worksheets for all Grades

Videos, examples, solutions, and lessons to help Grade 3 students learn how to partition a whole into equal parts and define the equal parts to identify the unit fraction numerically.

Common Core Standards: 3.NF.1, 3.NF.3c, 3.G.2

NY Common Core Math Module 5, Grade 3, Lesson 5

Application Problem
Ms. Browne cut a 6 meter rope into 3 equal size pieces to make jump ropes. Mr. Ware cut a 5 meter rope into 3 equal size pieces to make jump ropes. Which class has longer jump ropes? (Bonus: How long are the jump ropes in Ms. Browne’s class?)

Remember to always answer a problem with a complete statement.

Concept Development
Cut a circle into two equL parts.
What’s the name of each unit? 1 half.

1 half is the unit form.
The numerical form is ½

Both of these refer to the same thing: 1 out of 2 equal units.

Lesson 5 Problem Set

1. Fill in the chart. Then whisper the fractional unit.
Total Number of Equal Parts, Total Number of Equal Parts Shaded, Unit Form, Fraction

Concept Development and Homework

4. Draw two identical rectangles. Shade 1 seventh of one rectangle and 1 tenth of the other. Label the unit fractions. Use your rectangles to explain why 1/7 is greater than 1/10.

Lesson 5 Homework

1. Fill in the chart. Then whisper the fraction.
Total Number of Equal Parts, Total Number of Equal Parts Shaded, Unit Form, Fraction

2. This figure is divided into six parts. Are they sixths? Explain your answer.

4. Draw two identical rectangles. Shade 1 seventh of one rectangle and 1 tenth of the other. Label the unit fractions. Use your rectangles to explain why 1/7 is greater than 1/10.

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