Download - Confidence Level Through Motion
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Confidence Level Through Motion
Ashley SchreckengostWheaton High School
Silver Spring, MD
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My School
• 79.9% currently or at some point have been on Free and Reduced Meals (FARMS)
• 56.5% Hispanic, 23.4% Black, 9.5% Asian and 8% White
• 56% have been ESOL at some time.• 18% Mobility rate• 13% Special Education
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Confidence Level Through Motion
• Activity:– Students are each given a snack size bag of skittles
where students find the proportion of green skittles in their bag.
– Students then create a 68% confidence interval.– Students who capture the true value of 20% stand
on one side of the room and students who do not capture it stand on the other.
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68% confidence Interval
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95% Confidence Interval
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99% Confidence Interval
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What this Activity Accomplished!
• My students could actually “see” what confidence level meant.
• We referred back to the motion of students around the room even up until the day before the AP exam.
• It was incredibly clear the difference between confidence level and confidence interval.