What do you notice? What do you wonder?

3 number lines. Top number line, scale 0 to 1 by tenths. Middle number line, scale from 0 to 1 tenths by hundredths. Bottom number line, scale 0 to 1 hundredth by thousands. Arrays going from the 0 on the top number line to the zeroes on the middle number line and third number line. 1 arrow going from the second tick mark on the top number line to the last tick mark on the middle number line labeled 1 tenth. One arrow going from the second tick mark on the middle number line to the last tick mark on the bottom number line labeled 1 hundredth.

On each number line:

• Label all of the tick marks.
• Locate and label the number 0.001.

1. Label the tick marks on each number line.
   1.  

      

   2.  

      

   3.  

      

2. Which of the number lines would you use to compare 0.534 and 0.537? Explain or show your reasoning.

1. Use the symbol > or < to compare the decimals 0.2 and 0.02. Use the number line to explain or show your reasoning.

   

2. Use the symbol > or < to compare the decimals 0.3 and 0.14. Use the number line to explain or show your reasoning.

   

3. Use the symbol > or < to compare the decimals 0.23 and 0.216. Use the number line to explain or show your reasoning.