Lesson 3

Circle Pieces: Red, Pink, Orange, Aqua

Est. Class Sessions: 2–3
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Mathematical Standards

3.NF.A
Develop understanding of fractions as numbers. (3.NF.A.1, 3.NF.A.2)
3.G.A
Reason with shapes and their attributes. (3.G.A.2)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP3.
Construct viable arguments and critique the reasoning of others.
MP5.
Use appropriate tools strategically.
MP6.
Attend to precision.
MP7.
Look for and make sense of structure.

Students continue to explore circle pieces used to represent fractions and to develop fraction concepts.

Content in this Lesson

  • Representing fractions using circle pieces [E1].
  • Representing fractions using words and numbers [E2].
  • Partitioning shapes into fractional parts [E6].
  • Identifying the unit whole when given a fractional part of the whole [E7].
  • Recognizing that fractional parts of a unit whole must be of equal size [E3].
  • Representing fractions greater than one.
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide
Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

fraction circle pieces: red, pink, orange, aqua
resealable plastic bag, optional

Materials for the Teacher

Display of Agree or Disagree? Master (Teacher Guide)
Display of Red, Pink, Orange, and Aqua Pieces Master (Teacher Guide)
Display of Fraction Challenge (Student Activity Book) Pages 341–342
Unit 9 Assessment Record
Fraction Names chart from Lesson 2
Display set of fraction circle pieces

Materials Preparation

Prepare sets of Fraction Circle Piece. In Lesson 3 students use the red, pink, orange, and aqua pieces from the fraction circle sets. Prepare a set of the pieces that they will need for this lesson and put away the remaining pieces in an additional bag. The subsets used in Lessons 2 and 3 will be used together in later lessons.

Fraction Names Chart. Display the chart made in Lesson 2. Students will add to the chart in this lesson.

Assessment in this Lesson

Assessment Expectation Assessed

Naming Wholes and Parts
Student Activity
Book Page 339
E1.
Represent fractions using objects, area models (e.g., circle pieces, fraction strips, drawings) and number lines.
E3.
Recognize that fractional parts of a unit whole may be different shapes but must be the same size.
E6.
Partition shapes by a given unit fraction.
E7.
Identify the unit whole when given a fractional part of a whole.

Parts and Wholes Quiz
with Feedback Box
Teacher Guide - digital

E1.
Represent fractions using objects, area models (e.g., circle pieces, fraction strips, drawings) and number lines.
E2.
Use words and numbers to name fractions.
E3.
Recognize that fractional parts of a unit whole may be different shapes but must be the same size.
E4.
Recognize that the same fractional parts of different-size unit wholes are not equal.
E6.
Partition shapes by a given unit fraction.
E7.
Identify the unit whole when given a fractional part of a whole.