The Price Is Right!
(What price is right?)
By George Bigham
EDSU 533, Fall 2011
If you could open your own
business…
What would you sell?
How could you decide the best price to
sell it for?
What information could help us decide
the best price?
• Can we find that information? How?
How can we use math to help us find
the best price?
(Make the most money!)
Plan:
Collect
Information
(Survey
classmates)
Use charts,
graphs, and
equations to
analyze your
data
Discuss your
results with
group and
class
Sample survey question and table
• If you could only buy
would you buy it?
Would buy for:
Free
$10
$12
$15
$20
Yes
(product) for __$ X___
Standards
• Algebra II 10.0: Students graph quadratic functions and
determine the maxima, minima, and zeros of the function.
• Algebra II 24.0: Students solve problems involving functional
concepts, such as composition, defining the inverse function
and performing arithmetic operations on functions.
• Prior knowledge activation of Algebra I 5.0 and 13.0 for the
data collection, graphing, and eventual composition of
functions to find an equation for Profit = Price x #sold
Rational
• The content objectives are to model a real life problem using
math and is stated explicitly on slide 6.
• Technical language will be introduced at the end of the lesson
to describe student discovered and interpreted concepts.
• Choice of focus item is meant to give students the ability to
link the topic to their own background.
• Content links increase gradually in complexity from modeling
simple data to combining equations to finding maximums.