# Be Precise

## Opening

# Be Precise

Watch the video of Sophie and Karen being precise as they find the surface area of a rectangular prism.

Discuss the following with your classmates.

- How did they become more precise in their language as they discuss the problem?
- How did they precisely specify the units in the problem?
- Can you give a more precise definition for any of the math terms Sophie and Karen use?

VIDEO: Mathematical Practice 6