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Famous
People: Teacher Notes
MA.8.A.1.1
Conceptual Knowledge
Estimation
Graphing
Procedural Knowledge
Graph Data
Estimate
Problem Solving
Reasoning
Communication
Connections
Representation
How well do you know famous
people in the news, on television or in the movies?
Students work individually.
Graph Paper
- 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 O’Connor |
|
|
| Chelsea
Clinton |
|
|
| Tiger
Woods |
|
|
| Britney
Spears |
|
|
| Michael
Jackson |
|
|
| Jerry
Seinfeld |
|
|
| Sarah
Michelle Geller |
|
|
| Senator
Strom Thurmond |
|
|
| Cher |
|
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- 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?
___________________________________________________________________________________
As a result of this activity,
students will be able to model the equation y = x.
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