Lesson 4 One More and One Less

    • Let’s find 1 more or 1 less.

Warm-up How Many Do You See: One Less

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

  1. a ten frame filled with counters, two extra counters below
  2. a ten frame filled with counters, one extra counter below
  3. a ten frame filled with counters, seven extra counters below
  4. a ten frame filled with counters, six extra counters below

Activity 1 Count Out and Show One More or One Less

Show your number.
Show how your partner changed the number.

Round 1:

Starting Number:

New Number:

Round 2:

Starting Number:

New Number:

Round 3:

Starting Number:

New Number:

Round 4:

Starting Number:

New Number:

Activity 2 Color One More or One Less

  • Roll to choose a number and 1 more or 1 less.

  • Color the number that is 1 more or 1 less than your number.

  • Record the starting number and the new number.

a 5x5 table filled with numbers

Starting Number:

New Number:

Round 1:

Round 2:

Round 3:

Round 4:

Activity 3 Centers: Choice Time

Choose a center.

Less, Same, More
Center. Less, Same, More.
Math Fingers
two hands showing 8 fingers
Tower Build
Center. Tower Build.
Math Stories
Center. Math Stories.
Which One