How to Calculate Standard Deviation and Variance

What if math teachers are really pirates and they want us to find x so they can get the buried treasure? A short video explains how to calculate standard deviation and variance with a step-by-step guided practice problem. The formula is easy to understand when applied as shown in the video. 

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CCSS: Adaptable
Instructional Ideas

  • Use the video as either an introduction or a review to standard deviation
  • Assign as homework in a flipped classroom
Classroom Considerations

  • Assumes prior knowledge of sums and how to solve equations
  • The first in a set of seven videos
Pros

  • Walks through the problem slowly without wasting time
  • Visuals are easy to follow and comprehend
Cons

  • Only solves one example problem
Common Core