Monday, January 30, 2006

First post

Well this is the first post. I have added another learning object at . Its a Lissajous generator. Why? Mainly because it was fun but also because I like the idea of learning objects being reprogrammable by the learner.

I was inspired by the excellent set of mathematical gif animations at and then re-visited Virtual Manipulatives at and

Seems that there is a continuum:
Objects for viewing
Objects for manipulating & viewing
Objects for re-programming, manipulating and viewing

Maybe if the third option was done by somebody more skilled than me, it would be the most powerful learning object. There's your challenge!

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Blogger Bill Kerr said...

I had a brief play with this one but didn't really get it - I would have to read up on Lissajous figures - maybe that's your challenge (!), to build in more explanation into the program, to explain their application - all I can see is that a figure changes and rotates faster when I press up and down arrow keys - I sense the program might capture my imagination with a little more work - I can always claim I'm too busy to go off and study Lissajous! Now, how are you going to inspire me?

Tuesday, January 31, 2006 10:55:00 PM  
Blogger Tony Forster said...

Thanks Bill,
Not inspired by Lissajous? Then you probably wont be by Moire either. I think they are both great just to look at. It was a great achievement for me when I created my first Lissajous figure on an oscilloscope, back in my early electronics days.

The Australian ABC liked the 3:1 pattern so much they adopted it as their logo. Its stylised now but back in 1956 it was generated by two signal generators and an oscilloscope.

Wednesday, February 01, 2006 10:18:00 AM  
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