What do you notice? What do you wonder?

Two schools buy science books for $8 each from a publisher to sell at their book fairs. School A sells the books for $12. School B sells the books for $12.90

1. Who do you think sells more science books? Explain or show your reasoning.
2. How much profit does each school make if they each sell 35 books?
3. School B sells 10 science books. How many science books does School A have to sell to raise about the same amount of money?

Price list from the publisher:

Plan a book fair:

1. Choose 3–5 types of books to order.

2. Decide on the mark-up price for each type of book you chose.

3. Estimate how much money your school will raise as a profit with your book fair.

   Record an estimate that is:

   too low	about right	too high

4. Explain or show your reasoning for the estimate. Include the assumptions you made.