Lesson 2

More Fraction Strips

Est. Class Sessions: 2–3
X

Mathematical Standards

4.NF.A
Extend understanding of fraction equivalence and ordering. (4.NF.A.1, 4.NF.A.2)
4.NF.B
Build fractions from unit fractions. (4.NF.B.3, 4.NF.B.4)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP4.
Model with mathematics.
MP6.
Attend to precision.
MP7.
Look for and make use of structure.

Students continue to work with fraction strips, adding to the set of whole, halves, fourths, and eighths strips they made in the last lesson. They make strips to show thirds, fifths, sixths, ninths, tenths, and twelfths. They use their strips to compare fractions and to find equivalent fractions.

Content in this Lesson

  • Representing fractions using fraction strips [E1].
  • Identifying fractional parts of a whole.
  • Using words and numbers to name fractions [E2].
  • Finding equivalent fractions using fraction strips [E8].
  • Naming and representing fractions greater than one as mixed numbers or improper fractions using fraction strips [E5].
  • Writing number sentences from models of fractions [E6].
X

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

scissors
envelope containing fraction strips from Lesson 1 (whole, halves, fourths, eighths)
crayons, markers, or colored pencils
ruler

Materials for the Teacher

More Fraction Strips for the Teacher Master (Teacher Guide)
Fraction Strips from Lesson 1. See Materials Preparation.
Display of Writing Numbers in Words (Student Guide) Reference
Unit 8 Assessment Record

Materials Preparation

Fraction Strips for Demonstration. Prepare a set of fraction strips for thirds, fifths, sixths, ninths, tenths, and twelfths to use for demonstration throughout the unit. Combine these with the strips that you made in Lesson 1. Color the strips on a copy of the More Fraction Strips for the Teacher Master, then cut them out and fold them. Use the color code for fraction strips shown in Figure 1. Colors of the strips match the colors of fraction circle pieces that will be used later in the unit. Fraction circle sets do not have ninths, so leave that strip white as suggested in Figure 1.

Figure 1: Color code for fraction strips to match the colors of the fraction circle pieces

Assessment in this Lesson

Assessment Expectation Assessed

More Fraction Strips Classroom Observation
during Part 4
Teacher Guide - digital
E1.
Represent fractions using area models (circle pieces, fraction strips, drawings) and number lines.
E2.
Use words and numbers to name fractions.
E5.
Name and represent fractions greater than one as mixed numbers and improper fractions using models (fraction strips, circle pieces, number lines).
E8.
Find equivalent fractions using area models (circle pieces, fraction strips, drawings) and multiplication and division strategies.

More Fraction Strips Check-In: Questions 14–17
Student Guide
Page 308
E2.
Use words and numbers to name fractions.
E5.
Name and represent fractions greater than one as mixed numbers and improper fractions using models (fraction strips, circle pieces, number lines).
E6.
Write number sentences from area models of fractions
(e.g., 1/2 = 3/6, 1/3 + 1/3 = 2/3, 1/3 + 1/3 + 1/3 = 1/3 × 3).
E8.
Find equivalent fractions using area models (circle pieces, fraction strips, drawings) and multiplication and division strategies.