NAME ____________________________________ DATE __________________

FAMILY LETTER

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About the Mathematics in This Unit

Dear Family,

We are beginning a new unit in mathematics called How Many Stickers? How Many Cents?. In this second number unit, students focus on place value of 2- and 3-digit numbers. They are introduced to Sticker Station, a store that sells single stickers, strips of 10 stickers, and sheets of 100 stickers. They use this context, as well as money (pennies, dimes, dollar bill) and cubes organized in towers of 10, to think about how numbers are composed. Students also solve a variety of addition and subtraction story problems and play games that involve adding multiples of 5 and 10 up to 100 or $1.00. They read and write numbers to 500 and practice adding and subtracting 10 to 3-digit numbers.

Throughout this unit, students will be working toward these goals:

Benchmarks Examples
Solve a put together/take apart story problem with both addends unknown, and find all the possible combinations.

Sally had 34 cents in dimes and pennies. How many of each could she have?

Handwritten text reads: 3 dimes and 4 pennies. 2 dimes and 14 pennies. 1 dime and 24 pennies. 34 pennies.

Solve a put together/take apart story problem with one addend unknown. If you have 41 stickers in a sticker book, how many more do you need to have 50 stickers? 60 stickers?
Solve two-step story problems about money. I have 3 quarters and a nickel. How much money do I have? How much more do I need to have $1?

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Table of Contents

Investigations 3 in Number, Data, and Space®, Student Activity Book Unit 1 Coins, Number Strings, and Story Problems Unit 2 Attributes of Shapes and Parts of a Whole Unit 3 How Many Stickers? How Many Cents? Unit 4 Pockets, Teeth, and Guess My Rule Unit 5 How Many Tens? How Many Hundreds? Unit 6 How Far Can You Jump? Unit 7 Partners, Teams, and Other Groups Unit 8 Enough for the Class? Enough for the Grade?