## Lesson: Compare Whole Numbers to 100

Developing the Concept

**Materials:** number line and number cards 0 – 20; base-ten blocks (tens rods and ones units) or beans and bean sticks; overhead projector and overhead base-ten blocks, if available

**Preparation:** Put a number line on the board or on the floor. Prepare a large card for each symbol > and <.

**Prerequisite Skills and Concepts:** Children should be able to count and write numbers 0 – 10 and should be familiar with ordering numbers 0 – 10.

**Wrap-Up and Assessment Hints**

There is a lot of material covered in this unit, and the different skills need lots of practice. As you wrap up, reinforce the vocabulary, making certain the children have a thorough understanding of the concepts presented. Make sure that children are proficient in one set of numbers before introducing larger numbers.