Lesson 2

Operations on a Number Line

Est. Class Sessions: 1
X

Mathematical Standards

3.OA.A
Represent and solve problems involving multiplication and division. (3.OA.A.1, 3.OA.A.3)
3.OA.D
Solve problems involving the four operations, and identify and explain patterns in arithmetic. (3.OA.D.9)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP6.
Attend to precision.
MP7.
Look for and make sense of structure.
MP8.
Look for and express regularity in repeated reasoning.

Students revisit constant hoppers and number lines to solve problems that further their understanding of multiplication and the order of operations for addition, subtraction, and multiplication.

Content in this Lesson

  • Identifying and extending multiplicative patterns in number lines [E1].
  • Representing solutions strategies for numbers involving multiplication using number lines and number sentences [E4].
  • Representing the order of operations for addition and multiplication using number sentences.
  • Representing the order of operations for addition and multiplication as moves on a number line.

Daily Practice and Problems E–F

E. Multiplication: Square Numbers

F. Time

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

desk number line (0–100)

Materials for the Teacher

class number line (0–130)
Unit 10 Assessment Record

Assessment in this Lesson

Assessment Expectation Assessed

Operations on a Number Line
Check-In: Questions 6–11
Student Guide
Page 286
E1.
Identify and extend multiplicative patterns in graphs, tables, and number lines.
E4.
Represent solution strategies for problems involving multiplication (e.g., models, drawings, number lines, tables, number sentences, and graphs).

Vocabulary in this Lesson