Lesson 3 Add 1 or 2

    • Let’s add 1 or 2.

Warm-up How Many Do You See: Dot Cubes

How many do you see? How do you see them?

  1. 2 dot cubes. First cube, 3. Second cube, 1.
  2. 2 dot cubes. First cube, 4 Second cube, 1.
  3. 2 dot cubes. First cube, 4. Second cube, 2.
  4. 2 dot cubes. First cube, 5. Second cube 2.

Activity 1 Introduce Five in a Row: Addition and Subtraction, Add 1 or 2

How did you find the sum?

Activity 2 Centers: Choice Time

Choose a center.

Counting Collections

Center. Counting Collections.

Number Race

Center. Number Race.

Check it Off

Center. Check It Off.

Five in a Row: Addition and Subtraction

Center activity. Five in a row.

Practice Problem

Problem 1

Find the value of each sum.