1. AIM: Histograms and Pictographs
Do Now
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2. The table on the left shows the number of hours students watch
television in one week. Construct a Frequency Table for the data on
the right.
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3. Anticipatory Set: Mr. Snowden ordered the grades his students
earned on a test. Using these numbers, he created a histogram by
grouping the grades into 60’s, 70’s, 80’s, and 90’s.
67 71 75 75 76 78 79 80 80 80 81 83 84 84 85 85 85 85 88 92
Answer the questions below the graph based on the data.
1.) What does each bar represent?
2.) How many students earned a grade between 80 and 100?
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4. Anticipatory Set: Mr. Snowden ordered the grades his students
earned on a test. Using these numbers, he created a histogram by
grouping the grades into 60’s, 70’s, 80’s, and 90’s.
67 71 75 75 76 78 79 80 80 80 81 83 84 84 85 85 85 85 88 92
Answer the questions below the graph based on the data.
1.) What does each bar represent?
2.) How many students earned a grade between 80 and 100?
4

5. Anticipatory Set: Mr. Snowden ordered the grades his students
earned on a test. Using these numbers, he created a histogram by
grouping the grades into 60’s, 70’s, 80’s, and 90’s.
67 71 75 75 76 78 79 80 80 80 81 83 84 84 85 85 85 85 88 92
Answer the questions below the graph based on the data.
1.) What does each bar represent?
2.) How many students earned a grade between 80 and 100?
5

6. Anticipatory Set: Mr. Snowden ordered the grades his students
earned on a test. Using these numbers, he created a histogram by
grouping the grades into 60’s, 70’s, 80’s, and 90’s.
67 71 75 75 76 78 79 80 80 80 81 83 84 84 85 85 85 85 88 92
Answer the questions below the graph based on the data.
1.) What does each bar represent?
2.) How many students earned a grade between 80 and 100?
6

7. Anticipatory Set: Mr. Snowden ordered the grades his students
earned on a test. Using these numbers, he created a histogram by
grouping the grades into 60’s, 70’s, 80’s, and 90’s.
67 71 75 75 76 78 79 80 80 80 81 83 84 84 85 85 85 85 88 92
Answer the questions below the graph based on the data.
1.) What does each bar represent?
2.) How many students earned a grade between 80 and 100?
7

8. Anticipatory Set: Mr. Snowden ordered the grades his students
earned on a test. Using these numbers, he created a histogram by
grouping the grades into 60’s, 70’s, 80’s, and 90’s.
67 71 75 75 76 78 79 80 80 80 81 83 84 84 85 85 85 85 88 92
3.) Describe the similarities between bar graphs and histograms?
Similarities Differences
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9. 1.) Create a histogram based on the following frequency table
which show different coaches monthly practice times.
Number of Hours Frequency
1-5 10
6-10 23
11-15 14
16-20 9
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10. 1.) Create a histogram based on the following frequency table
which show grades on the last exam.
Grade Ranges Frequency
50-59 2
60-69 5
70-79 8
80-89 10
90-100 7
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11. 3.) In which situation would you use a histogram to display data? Explain.
A to show how you spend money
B to show the change in temperature throughout the day
C to show the golf scores from the whole team
D to show the life expectancy of different animals
4.) In which situation would you use a bar graph to display data? Explain.
F to compare the speed of different computers
G to show how a cat spends its time
H to show how a child’s height changes as he or she grows
J to show the distribution of math grades in your class
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12. Pictographs: are drawings or pictures that represent a word,
sound or idea. Pictographs are used to represent numerical data in
a statistical or financial graph, with each value represented by the
size of pictures.
6.) How much would you save on a
15 minute weekday call by using
UniDial Unity instead of using
AT&T True Savings?
7.) Describe the differences in
the dollar bills between the
different companies?
8.) Which graph does this graph
resemble from previous classes?
Why?
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14. BEFORE YOU LEAVE
Describe a situation where a histogram would be
the best way to display the data involved in the
situation.
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15. Before You Leave
Below is a Mesopotamian pictograph.
1.) What do you think the Mesopotamian that
created this pictograph was trying to display?
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16. Mr. Tjersland's Math 7
Homework: 1.) Page 23 #12-14 all
Graph Paper link on Blog
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