• 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: Developing Strategies for Problems with Sums to Twenty
  • Part 2: Sorting Sums
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 2

  • Part 1: Creating a Visual Representation of Doubling Numbers
  • Part 2: Doubles and Counting Numbers
  • Summarizing the Lesson
  • Homework and Practice
  • Literature Connection
  • Answer Keys

• Lesson 3

  • Part 1: Doubling and Halving as Inverse Operations
  • Part 2: Using Connecting Cubes to Double and Halve
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 4

  • Part 1: Doubles and Near Doubles
  • Part 2: Play Doubles, Doubles +1, Doubles −1
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 5

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

• Lesson 6

  • Part 1: True or False Number Sentences
  • Part 2: Finding Missing Numbers
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 7

  • Part 1: Build Addition Strategies Menu for Larger Numbers
  • Part 2: Practice with Addition Strategies for Larger Numbers
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 8

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

• Lesson 9

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

• Lesson 10

  • Part 1: Build a Subtraction Strategies Menu
  • Part 2: Practice Subtraction Strategies
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

Lesson 9