Adding/ Subtracting with Mental Math Strategies
These objectives will be taught daily in Number Talks; however, they will also be taught in story problem scenarios.
Content Objective 1: Add fluently within 20 using mental strategies.
Content Objective 2: Subtract fluently within 20 using mental strategies.
Compass Learning:
Addition
Across the Great Divide- 20240
Fact Family Photos- 20062
Collecting Postcards- 10127
Wash Day- 10129
Subtraction
Decomposing to Get a 10- Subtraction- OA006
Websites:
BrainPopJr.:
BrainPopJr. Adding and Subtracting
Songs:
Content Tasks
Incredible Equations
Order is Important
Different Paths, Same Destination
Number Destinations
Mental Math
EngageNY Tasks
These are the lessons to be used:
Lesson 1- Pages 19-33
Lesson 4- Pages 61-70
Lesson 7- Pages 90-99
Learn Zillion Tasks
Learn Zillion Add Up to four two digit numbers making a 10 Quick Assign Code: TW4TY8U
Add Within 20 By Regrouping on a Ten Frame Quick Assign Code: VU8WJ5C
Subtract Within 20 Using 10 Frames Quick Assign Code: 2Z2YC2A
Use Doubles to Add and Subtract Within 20 Quick Assign Code: X3MV4E5
FlipCharts (Link will open to a download of the flipchart)