Reflection: Vertical Alignment The Defining Pi Project, Day 1 - Section 1: Opener: Review of Percent Error

 

For today's activities, we will be assessing the relative error of various historical approximations of π. A guiding principle for a lesson like this one is that the more opportunities students are given to use different mathematical skills in context, the better adept they become at using those skills.  So even though it's a "Grade 7" content standard, it's important that we consistently revisit and reapply a concept like percent error.  Command of relative error is central to a numerically literate life; no matter what understanding of trigonometry my students take away from this course, I want to give them as many opportunities as possible to apply a skill like this.

  Refresh, then Build
  Vertical Alignment: Refresh, then Build
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The Defining Pi Project, Day 1

Unit 6: Trigonometry: Circles
Lesson 5 of 17

Objective: SWBAT appreciate the historical development of π and understand the benefit of calculating with small margins of error.

Big Idea: Students assess the precision of historical approximations of pi, then attend to precision as they set out to calculate the number on their own.

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4 teachers like this lesson
Subject(s):
Math, Trigonometry, Precalculus and Calculus, 12th Grade, pi, circles, Gallery Walk, Math History
  75 minutes
inscribinghexagon
 
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