Unit 3- How Many Stickers? How Many Cents?

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. 

Investigations Games Unit 3

Activities to Try at Home 

Addition and Subtraction Facts Your child has been practicing sets of addition and subtraction facts by playing games such as Close to 20, where the object is to select 3 cards that total as close to 20 as possible. They have also been reviewing facts using their sets of Fact Cards and sorting the cards into “Facts I Know” and “Facts I Am Still Working On.” Occasionally your child may bring home 4–6 chosen facts they are still working on to practice and review. 

Making One Dollar In class, we are learning about coin values and equivalencies of one dollar. Examine coins and ask your child to tell you about each coin. Discuss how much one dollar is worth in pennies, nickels, dimes, and quarters. Talk about equivalencies: 

“Here are 4 quarters. How much is this worth? Can you find another way to make $1.00?”

 “I have 7 dimes. How much more do I need to have $1.00?” 

Skip Counting In school, we are practicing skip counting by 5s and 10s. Look for opportunities to practice skip counting by 2s, 5s, and 10s. Count together and see how high you can go. You can help your child see everyday examples of this skill by counting items such as shoes, fingers, or feet. Pose questions about situations that involve equal groups. For example: “I just took the bus with 15 other people. Can you tell me how many shoes were on the bus?” “When we are with the whole family, how many fingers are there?” 

Math and Literature