Investigations 3 in Number, Data, and Space, Student Activity Book [Grade 2]

Unit 8 Enough for the Class? Enough for the Grade? > Investigation 2 > Related Activities to Try at Home

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Related Activities to Try at Home

Cover Up Students are working on a new set of subtraction facts. Play Cover Up with your child to practice these facts.

11 − 5	13 − 7	15 − 8
11 − 6	14 − 4	16 − 6
12 − 3	14 − 5	16 − 7
13 − 3	15 − 5	17 − 7
13 − 4	15 − 6	17 − 8
13 − 6	15 − 7	18 − 8

Begin with some pennies (between 11 and 18). First ask your child to figure out how many pennies there are. When your child is not looking, cover up some of the pennies. Then, ask your child how many pennies he or she thinks are under the paper. For example, start with 11 pennies and cover up 5. Encourage your child to think about how many pennies are showing, and what combination would make 11. Encourage them to think about and use facts they know to help them (e.g., “How could knowing that 5 + 5 10 help?”).

Math and Literature Here are some children's books that contain ideas related to our work in this unit that you and your child can read together. You can find many of them in your local public library.

Burns, Marilyn. The $1.00 Word Riddle Book.

Hulme, Joy N. Sea Sums.

Nolan, Helen. How Much, How Many, How Far, How

Heavy, How Long, How Tall Is 1000?

Robinson, Elizabeth K. Making Cents.

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