This video and accompanying interactive assessment practice was designed to teach overview of addition sums to first graders.
Learn addition and subtraction.
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.0: Introduction to Addition and Subtraction to 18:
- YouTube video on an introduction to the unit on addition and subtraction to 18
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.10: Mental Math - 1 Less, 2 Less:
- YouTube video on using mental math to determine 1 less and 2 less
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.11: Making 10:
- YouTube video on strategies on how to make 10
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.12: Mental Math - Doubles and Near Doubles:
- YouTube video on strategies for finding double or near doubles
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.13: Problem Solving:
- YouTube video on problem solving strategies for addition and subtraction to 18
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.14: Adding 3 or 4 Numbers:
- YouTube video on adding 3 or 4 numbers
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.1: Addition and Subtraction to 18:
- YouTube video on an introduction to the unit on addition and subtraction to 18 (NOTE: begin watching the video at about 7:00, as the beginning is blank)
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.2: Creating Fact Families:
- YouTube video on creating fact families
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.3: Equal and Unequal:
- YouTube video on looking at signs in math (equal and unequal)
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.4: Commutative Property of Addition:
- YouTube video on showing how changing the order of addends does not change the sum in a number sentence
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.5 Solving Addition Problems with Missing Addends:
- YouTube video on solving math problems with missing addends
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.6: Solving Subtraction Problems with Missing Minuends and Subtrahends:
- YouTube video on solving subtraction problems with missing minuends and subtrahends
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.7: Order in Subtraction:
- YouTube video on exploring order in subtraction sentences
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.8: Subtracting to Compare:
- YouTube video on subtracting to compare
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 3.9: Mental Math - 1 More, 2 More:
- YouTube video on using mental math to determine 1 more and 2 more
- Manipulatives and Templates to support Unit 3
- Assessment and Evaluation for Unit 3
Included are the support materials for Grade 2 Blended Learning Math - Unit 5.9: Addition and Subtraction to 100 - Subtraction Problem Solving:
- YouTube video on developing strategies for subtraction problem solving
- Manipulatives and Templates to support Unit 5
- Assessment and Evaluation for Unit 5
The purpose of this lesson is to introduce and activate prior knowledge about addition and subtraction.
Included is a YouTube video to support Grade 3 Blended Learning Math - Unit 3.0: Addition and Subtraction - Introduction
The purpose of this lesson is to use mental math strategies to subtract.
Included is a YouTube video to support Grade 3 Blended Learning Math - Unit 3.10: Addition and Subtraction - Using Mental Math to Subtract and a YouTube video on Mental Math Strategies.