The Real Number Line

Are you positive about the negatives?

Comparing People’s Heights

GIRLS BOYS

If you lined up all the students in my class on this line with the shortest students near the vertical line, what would you notice?

Real Number Line

In math, we can use both vertical and horizontal number lines. A real life example of a vertical number line is the thermometer.Show how integers can be graphed on both types of number lines by graphing –2, 0, and 3

Can you compare numbers using two different ways?

Graph –4 and –5 on the number line.

Now write the comparisons using

< and >

Ordering Real Numbers

What if the numbers they give are not the same kind?

Example: Write –2, 0.4, 0, -1.5, ½, and

in decreasing order23

Now try again with these numbers:

4.6, 0.7, 85%, -1/3, -0.35, 0

Real Numbers in Real Life

Date Dec. 18 Dec. 19 Dec.20 Dec. 21 Dec. 22

Lowest

Temp.- 10˚F -11˚F 16˚F 3˚F 2˚F

Draw the number line to determine the lowest temperature in Nome Alaska!

Individual Practice

1. Do problems 1-13 on page 68.

2. How did you do?

7 or more correct? CRCT will be a breeze!

8 or more correct? I pass the daily work!