## Lesson: Modeling Addition

Introducing the Concept

Children first learn the concept of addition by joining 2 groups.

**Materials:** overhead projector; red and yellow overhead counters; number cards 1–6, a plus sign, and an equals sign

**Preparation:** Prepare number cards for 1 to 6, the plus sign, and the equals sign.

**Prerequisite Skills and Concepts:** Children should be proficient in counting and recognizing numbers to ten.