Famous
People: Teacher Notes
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MA.8.A.1.1
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Conceptual Knowledge
Estimation
Graphing
Procedural Knowledge
Graph Data
Estimate
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Problem Solving
Reasoning
Communication
Connections
Representation
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How well do you know famous
people in the news, on television or in the movies?
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Students work individually.
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Graph Paper
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- The following list contains the names of fourteen famous people.
Without talking to anyone, write down your estimate of the age of
the person in the X column below. If you do not know the person, make
a guess.
Famous
Person |
X
Estimated Age
|
Y
Actual Age
|
Michael
Jordan |
|
|
Aaron
Carter |
|
|
Nancy
Reagan |
|
|
Mister
Rogers |
|
|
Justin
Timberlake |
|
|
Sandra
Day OConnor |
|
|
Chelsea
Clinton |
|
|
Tiger
Woods |
|
|
Britney
Spears |
|
|
Michael
Jackson |
|
|
Jerry
Seinfeld |
|
|
Sarah
Michelle Geller |
|
|
Senator
Strom Thurmond |
|
|
Cher |
|
|
- Look at the attached table and record the ages in the Y column.
- How well were you able to estimate the ages of these famous people?
To help answer this question, make a scatterplot with your estimate
of the age on the horizontal axis and the actual age on the vertical
axis.
- Where will a point lie if you estimate it correctly? Draw in the
line that represents estimates that are 100% accurate. What is the
equation of this line?
- What does it mean if a point is above the line?
___________________________________________________________________________________
In general, did you overestimate or underestimate?
___________________________________________________________________________________
How can you tell this from your scatter plot?
___________________________________________________________________________________
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As a result of this activity,
students will be able to model the equation y = x.
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