We took Hayden and Maggie with us this year to help select
a tree. We usually get a small one, but the children begged Uncle Bill to get a
really tall one and he finally agreed.
"We’ll need to buy a lot more strings of lights now that we
have a bigger tree," Uncle Bill reminded me as we drove home.
"Well, let’s go buy the store and get them right now," I
suggested as we tied the tree to the roof rack of the car.
When we got to the store, we saw a sign that read:
Christmas Tree Lights On Sale!!!
3 Strings For $7
Buy 2 strings and get 1 free!!
Uncle Bill only had $15 in cash and he didn’t
want to charge them or write a check. “I
probably have enough money left from buying the tree to pay the tax on the
lights, if you kids can figure out how many strings we can get for $15”.
How many boxes do you think the children
How many boxes could they purchase if Uncle
Bill had $35.00%3f *Don’t forget the taxJ
Show your work and prove your answers. You might want to create a table for your
DuPage Children’s Museum, 2003
Where is the Math%3f
reasoning and proof
using symbols and tables to solve problems
developing fluency with counting strategies
developing number sense