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Rotational Symmetry

January 28th, 2008 · 4 Comments

screenshotDemonstrate the use of tracing paper in checking the rotational symmetry of a shape.  Using “virtual” tracing paper you can demonstrate this method using an interactive whiteboard.  Place a shape.  Place the tracing paper then draw on to it using the interactive whiteboard.  Use the rotate tab to count the order of rotational symmetry.

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Tags: Shape Space and Measure

4 responses so far ↓

  • 1 patricia // Mar 15, 2009 at 4:19 pm

    Hi, yet again,so impressed. I have not found any great resources to really show rot. symmetry well and this does. We played a game where the kids had to colour round the shape and everytime they went wonky, the other team got a mark. They loved it! Then real bonus points for the correct order of rotation. Thanks so much. Got a bit fed up this week as lots of my free resources are now not free and you still are..hope it stays that way because myself and my kids could not do without your brilliant resources. Kind regards patricia

  • 2 admin // Mar 15, 2009 at 5:50 pm

    Hello again. I’m glad you liked it as this resource isn’t used very much – I was starting to wonder if there was a fault with it that I couldn’t find. Thanks for sharing how you used it. That might help others.

    As for staying free it will remain that way permanently.

    Thanks again for the feedback, Spencer

  • 3 Rosie Davis // Feb 21, 2010 at 6:43 pm

    One hour after finding a factor resource for my lesson I am still amazed at all these brilliant resources. I hope to use several of them.

  • 4 ROTATION « Elaine Killian // Jul 26, 2010 at 4:25 pm

    [...] Detailed Description: These activities are designed to introduce students to Rotational symmetry. Upon completion of these activities, students will know that an image is said to have rotational symmetry if it looks exactly the same when rotated. To illustrate examples of Rotational Symmetry, I will be using the SmartBoards application for Rotation sent to me by Mrs. Carla Harrington. Using this interactive tool, an image may be selected. After covering with virtual “tracing paper” the image is outlined. Then, you may click on Rotate to see how the “traced image” would appear if the original was rotated at 90°, 180°, 270° and 360°. It can be found at the following website: http://www.teacherled.com/2008/01/28/rotational-symmetry/ [...]

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