Unit 5 - Lesson 1 - Grade 5: Illustrative Mathematics

What do you know about 1 tenth?

What do you know about 1 hundredth?

What do you know about 1 thousandth?

The grid represents 1. What does the shaded region represent? Be prepared to explain your reasoning.

The grid represents 1. What does the shaded region represent? Be prepared to explain your reasoning.

How many of the small rectangular pieces (one of them is shaded) are there in the unit square? Explain or show your thinking.

How do you think we write the number one thousandth as a decimal? Explain your reasoning.

What did you learn about 1 thousandth? What do you still wonder about 1 thousandth?