## Lesson: Modeling Subtraction

Introducing the Concept

Children first learn the concept of subtraction as “taking away” by subtracting from numbers to 6.

**Materials:** overhead projector, 6 counters, number cards for the numbers 0 to 6 and the minus sign and equals sign

**Preparation:** Prepare number cards for 0 to 6 and the minus sign and equals sign.

**Prerequisite Skills and Concepts:** Children should be proficient in counting and recognizing numbers to ten. They should also have experience finding sums to eight.