Lesson 15

The purpose of this lesson is for students to identify pennies, nickels, and dimes and find the total value of a set of coins.

In previous units, students learned to use a ten when adding or subtracting within 100. They also used counting on or counting back as a strategy when adding or subtracting, including counting on or counting back by 5 and 10.

In this lesson, students recognize dimes, nickels, and pennies and learn their values. Students find the value of a set of coins by adding within 100. They may also use skip counting or counting on to find the value of a set of coins. When finding total values of a mixed combination of coins, students may group like coins, use multiples of 10 to add within 100, or count on. Students use the cent symbol when writing total values of coin collections.

• Create a money poster to display during the activity launch and throughout the section.
• Cut out money images from the blackline master and tape the dollar bill images.
• (optional) Gather collections of real or plastic coins.

• Each group of 2 needs access to the blackline master to cut out coins as needed (color-printing recommended) or a collection of real or plastic coins.

What did you learn about your students’ understanding of money during this lesson? What did you notice in their work from today’s lesson that you might leverage in that future lesson?