Pictographs Graphs
 

Worksheet Objective:
To learn how to get information off of different types of graphs.

There are multiple worksheets that cover graphs. When you complete this worksheet, be sure to move on to the next one.



Pictographs
A pictograph gets its name from the small pictures it uses as symbols on the graph.† Pictographs generally use a key to show the value of the pictures that are used as symbols.†

To read a pictograph, count the number of symbols on a line.† Then, multiply the number of symbols by the value of the symbol given in the key.† Sometimes, only a part of the symbol is shown.† Look at the partial symbol carefully.† Most often, a partial symbol will be 1/2 of the whole, or sometimes 1/4 or 3/4.† To find a value for a part of a symbol, find that fraction of the whole.

Try answering a few questions about the graphs below:

What does this graph represent?†
From the title of the graph and the key that is provided, we can tell that this graph is telling us the number of workers in the major U.S. labor unions.

Find the total membership of workers in the following organizations:
1. United Food and Commercial Workers†
2. American Federation of Teachers†
3. International Brotherhood of Teamsters†

For the first two, itís simply a matter of counting the number of symbols and multiplying by 250,000 (since the key tells us that each symbol represents that many workers)
1.    5 * 250,000 = 1,250,000 workers
2.    2 * 250,000 = 500,000 workers

For the third problem, you should have noticed that the last symbol was actually only 1/2 the symbol, which means you have a total of 7.5 symbols.† Now you can solve the problem just like the first two.
3.    7.5 * 250,000 = 1,875,000 workers


Pictograph Exercise
Use the Pictograph below to answer questions 4 - 7.


picto graph

Look at the graph above to interpret the answers:

4.  Which month had the highest amount of flower sales? 

5.  Which month had the least amount of flowers sold? 

6.  How many more flowers were sold in May then November?   

7.  If the profit for each flower is $5, how much profit did Kimís Flower Shop make in December?
    

answers:  4. February,  5.  September,  6. 50,  7.  $2,000.00


Reading Graphs Websites
If you would like more help with reading and interpreting graphs, check out: http://www.mathgoodies.com/lessons/graphs/line.html
www.tv411.org - lesson on graphs and charts

Try this website to create your own graphs:
http://nces.ed.gov/nceskids/graphing/classic/

 

Resources:
Levine, Gloria. (1992). GED Program: Science. Cambridge Adult Education: Englewood Cliffs, NJ.

Mitchell, Robert; Prickel, Donald. (1991). Number Power 5: Graphs, Tables, Schedules, and Maps. Contemporary Books: Chicago, IL.

Wunderman, Karen. (1998). GED Program: Social Studies. Cambridge Adult Education: Upper Saddle River, NJ.