Lesson 21 Center Day 4
Let’s play games to practice adding and subtracting.
Warm-up Number Talk: Missing Values
Find the missing value mentally.
Activity 1 Introduce Number Puzzles, Within 10
Use your number cards to play the game. Complete a puzzle before moving to the next one. Finish as many as you can.
Activity 2 Centers: Choice Time
Choose a center.
What’s Behind My Back