Lesson 5 Explore Addition and Subtraction
Let’s add and subtract.
Warm-up Number Talk: Subtract 1 or 2
Find the value of each expression mentally.
Activity 1 Introduce Check it Off, Subtract within 10
We are going to learn a new way to play Check it Off. This time, instead of adding to find each number on the recording sheet, you will subtract.
Activity 2 Centers: Choice Time
Choose a center.
Check it Off
Five in a Row: Addition and Subtraction
Show 2 ways you could use these cards in the game.