Lesson objective: Identify and create different combinations of dollars or coins that make the same amount of money.

This lesson helps to build fluency with identifying and creating equivalent amounts of money. Skip counting on number lines is used here because it helps students to track the values of the coins as they are counting to determine equivalent amounts of money. This work develops students' understanding that different combinations of dollars and coins can make the same amount of money.

Students engage in Mathematical Practice 2 (Reason abstractly and quantitatively) as they make sense of quantities and their relationships to coin and dollar values. Students engage in Mathematical Practice 4 (Model with mathematics) as they represent problem situations with drawings and coins or bills.

**Key**** vocabulary:**

- bill
- coin
- count on
- skip count
- value

**Special materials needed:**

- bills and coins
- hundreds grid
- number lines (filled in and blank)