Points on the Number Line
Warmup
Activity #1
Read Temperature Values on a Thermometer.
Here are five thermometers. The first four thermometers show temperatures in Celsius. The last thermometer is missing some numbers.
- Use the thermometers below to answer the questions that follow.
Activity #2
Create your own number line.
If you need help completing this activity, you can pause the exercise and watch the video clip below before proceeding.
- Use the Line tool
to draw a horizontal line. Always remember to click on 
to deselect an action before proceding to a new action. - Mark a point in the middle area of the line with the Point tool
and label it 0. - Use
or 
to hide or delete all other labels. - To the right of 0, continue using
to make marks that are 1 unit apart. Label the tick marks 1, 2, 3. . . 10. This represents the positive side of your number line. - Click on the reflector tool
and highlight all points on the other side of 0. - Click on O to mark points on the negative side of 0.
- Label the tick marks -1, -2, -3. . . -10. This represents the negative side of your number line.
- Then use your number line to answer the questions below.
Use your number line to answer these questions:
Challenge #1
Challenge #2
Drag each point to its proper place on the number line. Use your observations in order to answer the questions below the applet.