Reflection: Intrinsic Motivation A Penny or $100,000! - Section 1: Introduction


This lesson was fun for students and for me.  Watching them think that they would take the $100,000, but then wondering if it was a trick or not.

This suspicion made the students drive forward to find a solution.  Students were writing out the entire table of values instead of deriving a formula from the table.  It takes a little more time than I had originally thought, but it is worth it.  To see them finally solve the problem and then realize the doubling the pennies every day was a better deal.

The Math Dude shows enthusiasm to set up the problem well, and when I pause it at the end of the question, students begin to think and work.  Students then want me to show the remainder of the video to verify the solution.

  Great Lesson to Motivate Students About Exponential Functions
  Intrinsic Motivation: Great Lesson to Motivate Students About Exponential Functions
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A Penny or $100,000!

Unit 6: Exponential Functions
Lesson 1 of 13

Objective: SWBAT identify, graph, and explain exponential growth for functions of the form f(x)=ab^x where b > 1, and f(x)= a( 1 + r)^t using a table of values.

Big Idea: Students compare the pattern of change of an exponential function to the rate of change in a linear function.

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13 teachers like this lesson
Math, comparison and contrast, Exponents and Exponential Functions, Algebra, Introduction to Exponential Functions, Graphic Organizer, student work, Closing, frayer model, Closing, Growth Function
  50 minutes
penny or million dollars 2
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