Lesson 4

Compare and Order Decimals

Est. Class Sessions: 2
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Mathematical Standards

5.NBT.A
Understand the place value system. (5.NBT.A.1, 5.NBT.A.3, 5.NBT.A.4)

Standards for Mathematical Practice

MP2.
Reason quantitatively.
MP5.
Use appropriate tools strategically.
MP6.
Attend to precision.
MP7.
Look for and make use of structure.

Students compare and order decimals. They use place value understanding and benchmark numbers to round decimals.

Content in this Lesson

  • Representing numbers to the thousandths using fraction circle pieces, grid models, and number lines [E1].
  • Representing numbers to the thousandths using fractions, decimals, and words [E1].
  • Comparing and ordering decimals to the thousandths place using place value understanding and benchmarks [E3].
  • Using place value understanding to round decimals [E4].
  • Recognizing that in a multidigit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left [E5].
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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

  • Prepared Hundredths Circle Wheel from Lesson 2
  • markers
  • scissors
  • envelope to store game cards

Materials for the Teacher

Materials Preparation

Prepare Digit Cards. Make double-sided copies of the Digit Cards 0–9 Masters on heavy paper for each student pair and for a display set. Cut apart the cards and store them in an envelope. Save prepared decks of digit cards for the Workshop in Lesson 9.

Prepare Fraction Cards. Fraction representations can be added to the decimal representations to make the Decimal Order game more challenging. Copies of the Fraction Cards Master can be prepared and made available to those students ready for the additional challenge.

Assessment in this Lesson

Assessment Expectation Assessed
Represent and Compare Decimals Quiz
Teacher Guide - digital
E1.
Represent numbers to the thousandths using fractions, decimals, words, area models, base-ten pieces, number lines, and expanded form.
E2.
Make connections among representations of decimals including fractions, words, area models, base-ten pieces, number lines, and number sentences.
E3.
Compare and order decimals to the thousandths using place value understanding and benchmarks.
E4.
Round decimals using place value understanding.

Vocabulary in this Lesson