Lesson 6 Center Day 1
Let’s add and subtract in center activities.
Warm-up Number Talk: Teen Numbers, Two-digit Numbers
Find the value of each expression mentally.
Activity 1 Revisit Number Puzzles, Within 20
We are going to play a game you may have played in first grade called Number Puzzles.
Activity 2 Centers: Choice Time
Choose a center.
What’s Behind My Back?