Unit 7, Lesson 2
Points on the Number Line
Grade 6
2.1
Warm-up
A Point on the Number Line
Which of the following numbers could be represented by point
2.45
2.11
-2.5
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Which of the following numbers could be represented by point
2.45
2.11
-2.5
Here are five thermometers. The first four thermometers show temperatures in degrees Celsius
Five vertical thermometers, a through e. Thermometer a is shaded up to 1. Thermometer b is shaded up to 2. Thermometer c is shaded up to the halfway point between 3 and 4. Thermometer d is shaded to the halway point between negative 1 and 0. Thermometer has tick marks labeled negative 20, blank, blank, negative 5, blank, blank, ten, blank, blank, 25.
Elena says that the thermometer shown here reads
Your teacher will give you a sheet of tracing paper. Follow the steps to make your own number line.
Use your number line to answer these questions:
Pause here so your teacher can review your work.
Here is a number line with some points labeled with letters. What are the locations of points
Two numbers that are the same distance from 0 and on different sides of the number line are opposites. For example, points A and B are opposites because they are both 2.5 units away from 0 and on opposite sides of 0.
We can also say that the opposite of 8.3 is -8.3, and the opposite of
Here is another labeled number line with some rational numbers. A rational number is a number that can be written as a positive or negative fraction or zero.
The number 4 is positive, and its location is 4 units to the right of 0 on the number line. The number 4 can be written as
The number
All fractions and their opposites are rational numbers.
Two numbers are opposites if they are the same distance from 0 on the number line, but on different sides. One is negative, and the other is positive.
A rational number is a number that can be written as a positive fraction, a negative fraction, or zero.
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