Lesson 14 Center Day 2
Let’s play games to practice adding and subtracting.
Warm-up True or False: Expressions on Both Sides
Decide whether each statement is true or false.
Be prepared to explain your reasoning.
Activity 1 Introduce Number Puzzles: Within 20
Activity 2 Centers: Choice Time
Choose a center.
Number Puzzles
Shake and Spill
Compare
