vrijdag 20 november 2009

school project

For school I had to make a didactic model, that could be used as a teaching tool in one of my classes. We were free to pick a subject since it only was for practice, and here is the result.


It's a model I can use in my class to explain how the formula for calculating the surface-area of a circle came to be.
The original idea is not mine. This concept is very old. This is just my interpretation of it, adjusted to my wishes and I think I added some extra possibilities.




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4 opmerkingen:

  1. RND Modelshop.com30 november 2009 om 07:29

    ahhhh... math. My other passion :)
    ..scares away so many people! I used a string with 3 knots in it to demonstrate to the kids a 345 triangle & trigonometry. Give 3 kids one knot, let them pull tight, and it always forms a perfect right triangle. shorten any of the strings and they can see the effect of how the change of angles relates to the changing leingths first hand :)
    Your use of opposing colors makes a great demonstration! *cheers* -Ron

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  2. Coralie Cederna Johnson28 december 2009 om 04:59

    Great for art or math. Love this project! Great job! And thanks for visiting me! Happy New Year!!!

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  3. Anneke1 januari 2010 om 10:18

    Thank you both for your response! math scares away so many people and to receive such lovely comments was very encouraging for me! :D
    I love your idea Ron and I'll defenitely remember that for the day one my classes/groups reach a geometry chapter!

    Thanks again Ron and Coralie! Happy New Year to you too! :D
    hugs,
    Anneke

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  4. RND Modelshop.com1 januari 2010 om 18:49

    its a good trick! Shows when the strings are not slack and pulled tight a 3-4-5 triangle is always a right angle :) Did you see my wood sculptures on my Flickr page? They have triangles galore! -Ron
    http://www.flickr.com/photos/8331880@N02/sets/72157620971905575/

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