Dot Plots with Fractions

Dot Plots with Fractions

A dot plot is a way to display data along a number line, where each dot or x represents one number in a set of numbers

Reading and Understanding the Components of a Dot Plot

Identify the title

Identify the scaled intervals (whole numbers, fractions, or decimals)

Analyze the data represented with dots or X

Multiple Choice

The scale on the dot plot is organized from

• least to greatest

• greatest to least

Choosing the scale for a dot plot.

We know a number line is from least to greatest. Look at the data. How should we label the number line?

Should we start at zero? Why?

What is the length of the shortest pencil?

Multiple Choice

What is the length of the longest pencil?

• 4 3/4

• 5 1/2

• 6

• 4

Multiple Choice

How many hours do the least number of students spend doing homework?

• 0

• 1

• 1 $\frac{1}{4}$

• 2 $\frac{1}{2}$

Multiple Choice

What is the total number of colored pencils Daniel has?

• 6

• 5

• 4

• 4 1/2

How many colored pencils are longer than 4 3/4 in.?

Multiple Choice

How many students did homework longer than 2 hours?

• 14

• 16

• 10

• 12

What is the difference between the longest time a student spent doing homework and the shortest time a student spent doing homework? 

The shortest time spent doing homework is 1

 hour, and the longest time spent doing homework is 3

 hours.

We can subtract to find the difference. 

3−1=2

Multiple Choice

What is the difference in length between Daniel's longest and shortest pencil?

• 2

• 1 $\frac{1}{2}$

• 1 $\frac{1}{4}$

• 10 $\frac{3}{4}$

Finding the difference between longest and shortest.

6 - 4 $\frac{3}{4}$  =?

decompose 6 to 5 + $\frac{4}{4}$   

so 5 $\frac{4}{4}$  - 4 $\frac{3}{4}$  = 1 $\frac{1}{4}$