Announcing Bridges in Mathematics Third Edition!

See what’s new in the curriculum!

# Stuffed Bookcase

Practices
Contextualizing and decontextualizing
Representing and connecting
Topics
• Division
• Measurement
• Multiplication
4
5
Use an App
Number Pieces
2LRJ-2NDZ
Fractions
1N6G-77VQ

How many books can fit in a bookcase?

Jada wants to know how many hardcover books she could fit in her bookcase. The bookcase is 4 feet wide and 9 inches deep. Each of the 3 shelves is 9 inches tall.

• How many hardcover books, like the one Jada is reading, could she fit in her bookcase?
• Can you find another way to arrange the books so more will fit?
• Which arrangement do you think is better? Why?
How could you get started?
• How wide could Jada’s hand be? What could be the dimensions of Jada’s book?
• How could you arrange the books on one shelf?
• What if each student in your class wanted to store 6 books in a bookcase in your classroom? How many bookcases like Jada’s would your class need?
• Jada has a collection of paperback books. Most of these books are only ½ inch thick. Their front covers are about the same size as the book she’s reading now. How many more paperback books could she fit in her bookcase than hardcover books?