Adding and Subtracting Within 20

• Overview

• 1.3 Unit Overview
• Impossible

• Pre-Unit

• 1.3 Pre-Unit Check

• Sub-Unit 1: Addition and Subtraction Within `10`

  Develop fluency with addition and subtraction within `10`.

• Investigate: Kenny’s Recital
• So Many Sums!
• What’s the Difference?
• Organizing Photos
• 1.3 Sub-Unit 1 Quiz
• 1.3 Sub-Unit 1 Checklist

• Sub-Unit 2: Exploring Teen Numbers

  Understand teen numbers are composed of a ten and a number of ones. Represent and solve Add To, Start Unknown story problems.

• Same Number, Different Ways
• Decorating the Scrapbook
• Labeling Kenny’s Photos
• Harmonica Practice
• Earning Music Money
• 1.3 Sub-Unit 2 Quiz
• 1.3 Sub-Unit 2 Checklist

• Sub-Unit 3: Addition Within `20`

  Find sums within `20`. Represent and solve story problems involving addition within `20`.

• Family Photos
• Do They Have the Same Value?
• Making 10
• Kitten Coaster
• Changing an Addend
• What Works For You?
• 1.3 Sub-Unit 3 Quiz
• 1.3 Sub-Unit 3 Checklist

• Sub-Unit 4: Subtraction Within `20`

  Find differences within `20`. Represent and solve story problems involving subtraction within `20`.

• Kenny and His Stickers
• Getting to Ten
• Photos of Kenny
• What’s Alike and Different?
• Harmonica Songs
• 1.3 Sub-Unit 4 Checklist

• End-Unit

• 1.3 End-of-Unit Assessment

• Resources

• Differentiation and Personalized Learning

• 1.3 Extensions