• Unit Overview

  • Letter Home
  • Unit Preparation
  • Mathematics in this Unit
  • Assessment in this Unit
  • Key Assessment Opportunities Chart
• Daily Practice and Problems
• Home Practice

• Lesson 1

  • Part 1: Explore Sorting Methods
  • Part 2: Sort and Count the Buttons
  • Summarizing the Lesson
  • Homework and Practice
  • Extension
  • Answer Keys

• Lesson 2

  • Developing the Lesson
  • Summarizing the Lesson
  • Homework and Practice
  • Extension
  • Answer Keys

• Lesson 3

  • Developing the Lesson
  • Summarizing the Lesson
  • Homework and Practice
  • Extension
  • Answer Keys

• Lesson 4

  • Developing the Lesson
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 5

  • Developing the Lesson
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

Lesson 5

Button Solutions

Est. Class Sessions: 2

Daily Practice and Problems

X

Teacher Notes

X

Provide students with buttons or other counters to solve this problem. Some possible responses:

7 groups of ten and 6 left over.

Possible response: 70 + 6 = 76

6 groups of ten and 16 left over.

Grouping Buttons

Chris and Carla each group 76 buttons a different way. Show 76 buttons two different ways.

Chris’s way

Carla’s way