Lesson 5

Measure with Inches

Est. Class Sessions: 1–2
X

Mathematical Standards

1.NBT.B
Understand place value. (1.NBT.B.3)
1.MD.A
Measure lengths indirectly and by iterating length units. (1.MD.A.1, 1.MD.A.2)

Standards for Mathematical Practice

MP2.
Reason quantitatively.
MP4.
Model with mathematics.
MP5.
Use appropriate tools strategically.
MP6.
Attend to precision.

Students transition from measuring with nonstandard units to measuring in inches. They use 12-inch rulers to measure objects in the classroom.

Content in this Lesson

  • Exploring the purpose of standard units.
  • Measuring length to the nearest inch [E9].
  • Reporting lengths using numbers and units [MPE6].
  • Estimating lengths using inches [E9].
  • Connecting mathematics to real-world situations: measuring classroom objects in inches.
  • Comparing and ordering lengths using comparative language: shorter, longer, shortest, longest [E5].

Daily Practice and Problems U–V

U. Make a Shape

V. Count Feet by Twos Again

X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books
Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

12-inch ruler

Materials for the Teacher

Display of Math Practices (Student Activity Book) Reference
Unit 7 Assessment Record
How Big Is a Foot? by Rolf Myller
Measuring Advice chart from Lesson 2
chart paper
12-inch ruler
Units of Measure chart. See Materials Preparation.

Materials Preparation

Prepare Units of Measure Chart. Make a chart entitled "Units of Measure" on chart paper as shown in Figure 1.



Figure 1: A chart for listing units of measure

Prepare Optional Targeted Practice. To provide targeted practice with measuring in inches, place 12-inch rulers and an assortment of objects in a center for students to measure with standard units similar to activities in DPP item W Find an Object: Inches, item X Find Two Objects: Inches, and item Y Measure with Two Units.

Assessment in this Lesson

Assessment Expectation Assessed Math Practices
Expectation Assessed
Measure with Inches
Check-In:
Questions 7–8
Student Activity Book
Page 189
E9.
Measure and estimate length using nonstandard units (e.g., paper clips) and standard units (e.g., inches).
MPE6.
Use labels. I use labels to show what numbers mean.
Could Be or Crazy
Student Activity Book
Page 191
E9.
Measure and estimate length using nonstandard units (e.g., paper clips) and standard units (e.g., inches).
DPP Item V
Count Feet by Twos Again
Teacher Guide - digital
E4.
Group and count objects by twos, fives, and tens and count on to count the leftovers.

Vocabulary in this Lesson