Lesson 2 Match Representations of Tens

    • Let’s match different representations of numbers.

Warm-up Estimation Exploration: Cubes and Towers

  1. Round 1: How many cubes?

    Connecting cubes.

    Record an estimate that is:

    too low

    about right

    too high

  2. Round 2: How many cubes?

    Connecting cubes.

    Record an estimate that is:

    too low

    about right

    too high

Activity 1 Representations of Tens

Today you will play a game in which you try to find cards that match.

Activity 2 It’s a Match!

Let’s read the task statement from the handout.

Practice Problem

Problem 1

How many connecting cubes are in each picture?

  1. Connecting cubes. 1 tower of 10 cubes.
  2. Connecting cubes. 3 towers of 10 cubes.
  3. Connecting cubes. 7 towers of 10 cubes.