Lesson 5

More or Less

Est. Class Sessions: 2
X

Mathematical Standards

1.NBT.A
Extend the counting sequence. (1.NBT.A.1)
1.MD.A
Measure lengths indirectly and by iterating length units. (1.MD.A.2)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP5.
Use appropriate tools strategically.
MP6.
Attend to precision.

Students compare and order the number of connecting cubes in their trains from Lesson 4. Then they compare the length of six links with the lengths of classroom objects.

Content in this Lesson

  • Comparing and ordering quantities using more, less, or about the same [E3].
  • Connecting representations of quantities [E6].
  • Representing quantities of objects on a number line and with counters [E7].
  • Measuring length with non-standard units (links) [E8].
  • Collecting and organizing data.
  • Developing number sense for small numbers.
  • Counting a collection of 0–20 objects [E1].
  • Counting on from a given number [E4].
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

train of connecting cubes. See Materials Preparation.
10 connecting links
20 connecting cubes
desk number line (0–40)

Materials for the Teacher

Display of Measuring with Six Links (Student Activity Book) Page 9
Unit 1 Assessment Record
pointer or meterstick
class number line 0–130
6 connecting links

Materials Preparation

Customize Assessment Master. Prepare the Measuring with Ten Links Assessment Master by filling in the table with objects in your classroom that students can measure. They will be measuring with 10-link chains. Try to choose at least one item that is less than 10 links and one item that is more than 10 links.

Gather Trains of Connecting Cubes. Use the collection of trains from Lesson 4 or prepare as many trains of connecting cubes as the number of students in class. For example, for a class of 25 students, build trains with
1–25 cubes.

Assessment in this Lesson

Assessment Expectation Assessed
Observe
Summarizing the Lesson activity
Teacher Guide - digital
E3.
Compare and order quantities using more, less, or about the same.
E7.
Represent a quantity of objects on a number line, with counters, or with tallies.
Measuring with Ten Links
Teacher Guide - digital
E3.
Compare and order quantities using more, less, or about the same.
E8.
Measure length with non-standard units (e.g., links).