Lesson 5 Center Day 1

    • Let’s add and subtract.

Warm-up Which One Doesn’t Belong: Tens

Which one doesn’t belong?

  1. Ten plus ten plus ten.
  2. Connecting cubes. 3 towers of 10 cubes.
  3. Base ten diagram. 3 tens. 5 ones.
  4. The number 30.

Activity 1 Introduce Check It Off, Add or Subtract Tens

We are going to learn a new way to do the Check It Off center. It is called Check It Off, Add or Subtract Tens.

Activity 2 Centers: Choice Time

Choose a center.

Five in a Row

Center activity. Five in a row.

How Close?

Center. How Close.

Number Puzzles

Center activity. Number Puzzles.