# Exploring Numerical Relationships

## Stacks of Books

## Work Time

# Stacks of Books

- For which stack(s) of books could you determine the number of books in the stack by measuring the height of the stack?
- For the stack(s) of books you identified, what other information do you need to know to determine the number of books in the stack?

## Hint:

- What would have to be true about the books in the stack for you to be able to tell how many books are in the stack?
- Think about what you would divide the height of the books by to find the number of books in the stack.