Reflection: Complex Tasks Circles are Everywhere - Section 1: Do Now, Vocab and Pair-Share

 

This lesson represents a critical and cornerstone lesson in the Geometry CCSS curriculum because students will show that all circles are similar.  Within class notes, we refer and utilize properties of transformations to show this and also consider when and how shapes are congruent as well as similar.  Before teaching this lesson today, I felt excited and enthused that my students were really pulling together so many strands of Geometry into one lesson!  I wondered, too, how they would do!

Overall, since we've been referring back to transformations in almost every unit (specifically the polygons and similar figures unit), my students seemed confident about using their knowledge of transformations to relate to circles.  This lesson truly represents the biggest shift that I have felt teaching CCSS this year; this standard would have been hard to tie together without students strong knowledge of transformations and also congruency and similarly.  And I have to say, I like it!  I think this shift pairs well with my students' prior knowledge and also with the year-long Geometry CCSS content. 

 

 

  Biggest Shift in CCSS: All Circles are Similar Ah!!!!!
  Complex Tasks: Biggest Shift in CCSS: All Circles are Similar Ah!!!!!
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Circles are Everywhere

Unit 8: Circles
Lesson 1 of 10

Objective: SWBAT describe key parts of circles and apply concepts of tangent lines.

Big Idea: This lesson asks students to create real circles and then review key vocabulary connected with circles like diameter, radius, center, secant, tangent and center.

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circles abound for circles are everywhere lesson
 
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