2.5.B
The Standard
use the cent symbol, dollar sign, and the decimal point to name the value of a collection of coins.
Texas Essential Knowledge and Skills for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students count the total value of a coin collection. They write the amount using either the cent symbol or a dollar sign with a decimal point.
What Mastery Looks Like
- A student accurately counts a mixed collection of coins. The student can write 84¢ and $0.84, placing each symbol and the decimal point correctly.
Common Misconceptions
- Students may write both symbols, such as $45¢, or place the dollar sign after the number. They may write 45 cents as $45 or $.45 instead of $0.45.
How to Assess It
- Give students a picture of 2 quarters, 3 dimes, and 4 pennies. Ask them to write the total once with a cent symbol and once with a dollar sign and decimal point.
Lesson moves
Ways to Teach It
Give pairs real or plastic coins to count, then have them label each total on cards in cents and dollars.
Show 67¢, $0.67, and $67, then ask students to explain which two name the same coin value.
Play Coin Match by having students pair coin collection cards with matching labels such as 92¢ and $0.92.
Set up a classroom store where students choose an item, build its price with coins, and write the price in two forms.
Keep exploring
Related Standards
- 1.4.A
identify U.S. coins, including pennies, nickels, dimes, and quarters, by value and describe the relationships among them
- 2.5.A
determine the value of a collection of coins up to one dollar; and
- 1.4.B
write a number with the cent symbol to describe the value of a coin
- 3.4.C
determine the value of a collection of coins and bills
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