Reflection: Coherence Crazy Correlations - Section 3: Wrap it Up


Although we had to extend this lesson into a second class period, the questions remained the same.  The most difficult part for my students was in making the connection between which measurement was the best predictor and using that data to create an equation to generalize about height.  A few students were stumped at where to begin so I asked them questions like "what kind of function does your data look like when it's graphed?" and "Can you fit a straight line or curve through your graph?"  The interesting questions came from a team who were adamant that there was no function to fit all the data.  I agreed with them and then redirected them to creating an equation that "best fit" the data.  They remained unconvinced that such an equation had any value and/or asked how they could tell which one was best.  This continuing discussion helped me to understand the areas my students struggle with conceptually.

  makng connections
  Coherence: makng connections
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Crazy Correlations

Unit 11: Statistics
Lesson 5 of 17

Objective: SWBAT evaluate the correlation between linear data sets manually and using a graphing calculator.

Big Idea: Is this relationship the real thing? Just how positive are you? Use a correlation coefficient to find out!

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Math, Statistics, Algebra II, master teacher project, 11th Grade
  55 minutes
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