Reflection: Grappling with Complexity Geometric Sequences - Section 1: Launch

 

This launch was the perfect way to launch this lesson on exponential growth.  The title of the reflection "WHAT?" says it all.  I wish I had taken a picture of the look on the student's faces when they saw the answer to the question of folding a piece of paper 50 times...priceless!  The answer of 70 million miles was so outrageous that, almost instantly, students are interested an want to learn more.  This led to them experimenting with numbers and trying to prove it for themselves (although more than half the class was skeptical until they worked the numbers for themselves).    

  WHAT?!?!
  Grappling with Complexity: WHAT?!?!
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Geometric Sequences

Unit 7: Exponential Functions
Lesson 2 of 13

Objective: SWBAT apply a geometric sequence to a real world scenario.

Big Idea: If you folded a large piece of paper 50 times its thickness would be about 77 million miles...why?

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