Lesson 21 Compare Numbers and Images

    • Let’s figure out which number is greater than another number.

Warm-up Act It Out: Pass Out Snacks

6 students seated at table. 5 apples on the table. 1 apple in Diego's hand.

Diego is passing out snacks to the students at his table.
He has 5 apples.
His teacher gives him 1 more apple.
How many apples does Diego have now?

Activity 1 Which Has More?

Figure out how many things there are in each group. Write the number. Then circle the group that has more.

  1. Blue stars
    Blue moons.
    Handwriting lines.
    Handwriting lines.
    Blue stars
    Blue moons.
    Handwriting lines.
    Handwriting lines.
  2. Blue triangles.
    Fingers showing a number.
    Handwriting lines.
    Handwriting lines.
  3. 2 groups of 3 squares.
    2 hands. One hand, all fingers up. Other hand, closed fist.
    Handwriting lines.
    Handwriting lines.

Activity 2 Introduce Less Than, Equal To, Greater Than, Numbers and Images

We are going to learn a new way to do the Less Than, Equal To, More Than center.

Activity 3 Centers: Choice Time

Choose a center.

Less Than, Equal to, Greater Than
Center. Less Than, Equal To, Greater Than.
Math Libs
Center Activity, Mad Libs.
Number Race
Center. Number Race.

Practice Problem

Problem 1

  1. How many triangles are there? Write a number to show how many triangles there are.

    Green triangles.

  2. How many squares are there? Write a number to show how many squares there are.

    Orange Squares.

  3. Circle the group that has less shapes.

    1. Green triangles.
    2. Orange Squares.