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Easy Circle Drawer for pupils with poor motor skills?

Discussion in 'Mathematics' started by the_badgerman, Apr 12, 2011.

  1. Hi: I'd like to attempt some constructions with my bottom set year 7s, and I've been trying for some time to find an easier to use alternative to traditional (2-legged) compasses. I've found something that looks ideal, but the only sources that I can find seem to be US based. The device is called a Safety Compass (or Safe-t Compass). Can anyone help please? All I can seem to find are US sources on the internet, and I can't believe that I'm the only maths teacher in the country who would like a class set of circle drawers as an alternative to traditional compasses.

    Any suggestions welcome - here's a link to the kind of thing I'm after: http://www.calculatorsinc.com/bullseyesafe-tcompass.aspx

    or

    http://www.calculatorsinc.com/safe-tcompass.aspx

    Thanks in advance,
    Mike
     
  2. lunarita

    lunarita Established commenter

    Sorry, no idea where you'd get them but......
    .....that first one looks very like one we used when I was a pupil in lower secondary.
    I seem to remember it was difficult to use. The 'point' wasn't sharp enough so didn't stay put on the paper.

     
  3. I remember using une when I was in the second year (back in the day). It was white plastic with a clear circular pivot with a bump to pivot around, there was an orange finger screw to release a slider that travelled along the middle of the ruler part, it was about 6 inches long. Funnily enough I caught one of my year 11 pupils playing with one only last month but unfortunately he told me it was his father's.
     
  4. http://cgi.ebay.co.uk/Triman-Blue-Tint-Safety-Compass-x-5-School-Educational-/250791824733?pt=UK_Stationery&hash=item3a645b8d5d

    The power of ebay
    Five for £2.25, not the colour I remember but the rest is the same.
     

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