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 


 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.
