Step by step
The question
Question: draw a dot plot of 4, 5, 5, 6, 7, 5, 6, 8 and 5.
How many are less than 6?
1 Draw the number line
The number line goes from the smallest number, 4, to the biggest, 8.
2 Put the dots
The first number is 4.
We cross it out, and put a dot over 4.
Next is 5: a dot over 5.
Another 5: its dot goes on top of the first one.
Every number is crossed out, so every number has its dot.
3 Read the plot
Careful!
Less than 6 means 6 itself does not count.
4: 1 dot.
5: 4 dots.
We add them: 1 plus 4 is 5.
So 5 numbers are less than 6.
4 Check
Let's check: the other numbers make 4 dots.
5 plus 4 is 9, all the numbers.
So it is right!
Let's look back.
First: draw the number line.
Then: put the dots.
Then: read the plot.
Last: check.