Reflection: Student Grouping Areas of Regular Polygons Inscribed in Circles - Section 2: Group Activity


I have to say that I was very pleased with how the group activity for this lesson went. One of my main critiques of group work is that some students carry the team and other are able to loaf. With the way I designed this activity, students were working on parallel, but still different, tasks. In this way they were able to help each other without necessarily giving answers or copying. 

Because they were all working on different tasks, it also created a jigsaw component in which they had 4 distinct cases from which they could abstract general case (one of my favorite things to see students do). It was really cool to see the aha moments when students realized how all of their work had produced similar "abstractable" results.

  Group Activity Gone Well
  Student Grouping: Group Activity Gone Well
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Areas of Regular Polygons Inscribed in Circles

Unit 10: Areas of Plane Figures
Lesson 6 of 8

Objective: SWBAT express the ratio of an inscribed regular polygon's area to the area of its circumscribed circle as a function of the number of sides.

Big Idea: Ever seen a regular polygonal eclipse? Tune in to this lesson to find out what you've been missing.

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  80 minutes
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