Review the basics of lines plots and then practice creating and reading line plots.

What are line plots?

A line plot is a way to display data along a number line.
Line plots are also called dot plots.
Below is an example of a line plot showing the distance 17 turtles traveled in an hour (we know it is 17 turtles because there are 17 dots on the line plot).
The 3 dots above 21 mean that 3 turtles traveled a distance of 21 meters in an hour.
Want to learn more about line plots? Check out this video.

Graphing data on line plots

To graph data on a line plot, we put a dot (or an X) above each number in the data set. If a number appears twice in the data, we put two dots above that number.
For example, a graph of the data set 4, comma, 5, comma, 5, comma, 6 would look like this:
Want to learn more about graphing data on line plots? Check out this video.

Practice set 1: Reading line plots

Problem 1A
The lengths of alien arms are shown below.
How many alien arms are longer than 96 centimeters?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
alien arms

Want to try more problems like this? Check out this exercise.

Practice set 2: Graphing data on line plots

Problem 2A
5 friends made new necklaces.
The lengths were 52, 51, 52, 54, and 52 centimeters.

Make a line plot of the lengths.

Want to try more problems like this? Check out these exercises: Make line plots
Graph data on line plots.