2.MD.8 Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately.
Students will understand that bills and coins have standard value and that symbols and decimals display monetary value (2nd grade).
cent, dollar, quarter, dime, nickel, penny, decimal point, amount, currency
You will remember that last week we worked on skip counting by 5's. We will be using this method of skip counting when counting coins using Touch Math. You will remember that yesterday I introduced pennies, nickels, dimes, and quarters. You will watch this YouTube video:
This video will review counting coins using Touch Math to introduce our lesson.
Source: Geoff Mihalenko
You will review the above video to review counting by 5's. This will also help in our lesson for Touch Math.
Class, this is a poem/rap for you to recite and practice at home to remember the value of each coin and what each coin looks like...
Penny, penny, Easily spent. Copper brown and worth one cent.
Nickel, nickel, Thick and fat. You're worth five cents, I know that.
Dime, dime, Little and thin. I remember, you're worth ten.
Quarter, quarter, big and bold. You're worth twenty-five I am told.
You will learn how to use Touch Math with coins. I want to explain to you that each touch point on the coins is counted by 5. The quarter has 5 touch points and should be counted starting at the upper left, then upper right, then lower left, lower right, then center. “5, 10, 15, 20, 25.” The dime has 2 touch points and should be counted starting at the top then the bottom. “5, 10.” The nickel has one touch point and should be counted by touching only the center. “5.” The penny should be counted last. The penny has a line (as seen below) or a box around it. Add on pennies at the end. Below is an example of what the points look like on the coins...
If you are looking at the coins above, you would count the 5 points on the quarter as 5, 10, 15, 20, 25... then add the two points on the dime as 30, 35...then add the one point on the nickel as 40...then add the penny as 41, so you have 41 cents written as $.41. Notice, I put a dollar sign and a decimal before the number.
Now practice with the five sets of coins below...
Teacher will display PowerPoint on projector and students will use Touch Math that they learned at home to decide how much money is being displayed.
Source: California State University, Sacramento
Students will complete the worksheets below in class using the strategies taught with the Touch Coin technique. Teacher will circulate around room to ensure that students are getting an understanding of what they have learned.
Source: MathSalamanders and teacherspayteachers
Teacher will assess students' understanding by doing “ticket out the room” and giving each student a small plastic cup with a variety of coins under one dollar. The students have to tell the teacher how much money is in their cups by using the Touch Math method.
Computer/Internet, Projector, Coin Worksheets, plastic coins, a class set of cups with different amount of money in each cup
Enrichment for AG students: Have students practice playing bank. One student writes a check, the other cashes the check- may go up to $5. Intervention with LD students: Use manipulatives such as plastic coins, review skip counting songs, use the Touch Coin technique for counting coins, show PowerPoints and video to introduce Touch Coins. Intervention with ESL students: Use manipulatives such as plastic coins, show PowerPoints and video to introduce Touch Coins.