Lesson objective: Solve problems involving coins.

This lesson helps to build fluency with recognizing and understanding coin values, as well as how to trade coins with lesser values for a coin with a greater value (e.g., five pennies for one nickel). A Coin Race Mat is used here because it enables students to visually see the coins they have, and better work with the coins when they need to trade for coins with greater values. This work develops students' understanding that different denominations of currency represent different amounts of money: dollar bills, quarters, dimes, nickels, and pennies.

Students engage in Mathematical Practice 2 (Reason abstractly and quantitatively) as they work with coins of different values and amounts. Students need to recognize that one nickel has a value of five cents, and the same value can be made with five pennies.

**Key vocabulary:**

- coin
- dime
- nickel
- penny
- quarter
- value

**Special materials needed:**

- Coins: pennies, nickels, dimes, quarters
- Coin Race Mat
- Number cubes