Circles Are Awesome — Interactive Geometry

30 Jan

Circles are Awesome

Just a quick interactive lesson today that would be perfect as a distraction in any class or as a full lesson in a geometry class.  Circles Are Awesome uses the principle, that like a triangle, circles are unique in that they only need three points for you to create one.  In Circles Are Awesome, students can learn how this property works and then play with it themselves to create and manipulate their own circles.

From the front page of Circles Are Awesome, have students first select that they want to “learn about circles”.  A short 10 page flash tutorial will explain the concept behind using three points to create a circle and how this is mathematically possible.  Then once they are finished, allow students to play with circles”.  In this section, they can move and manipulate the three control points to create any size circle they wish.  Have them increase the number of circles created to illustrate the relationship between all the circles that can exist within the parameters of the control points.

Circles Are Awesome also has a print feature that you can use with the students to have them not only create several congruent circles, but then print their creations to work through proofs and calculations to determine the properties of the circles they created as well as areas and volumes.  You could also have them manipulate the points to create symmetrical pairs and then describe the conditions that needed to be met with their control and center points to achieve this.  The possibilities of the Circles Are Awesome manipulation page are literally infinite!


Posted by on January 30, 2013 in Websites


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2 responses to “Circles Are Awesome — Interactive Geometry

  1. Andrew

    January 30, 2013 at 11:07 am

    Thanks for posting this website about circles. I am going to be messing around with it. Our circles unit will come up in about 2 months, so I’m hoping to integrate it. I’ll be exploring your site more to see what other stuff I could integrate.

    Thanks again.

    • NJBiblio

      January 30, 2013 at 11:16 am

      I’m glad you found my post and hopefully it will be a big help to you! I try to cover all subjects so keep checking back for more sites.

      Thanks for looking.


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