[IAEP] 40 maths shapes challenges

Bill Kerr billkerr at gmail.com
Wed Sep 9 05:33:23 EDT 2009

introduced turtle art and barry newell's 40 shapes to my students today
about half way through the lesson someone asked, "how do you do the circle?"

before I could say anything another student replied, "that's easy - just use

you've gotta laugh
(an arc primitive wasn't there for the original logo, nor is it in scratch)

On Sat, Sep 5, 2009 at 2:12 AM, Maria Droujkova <droujkova at gmail.com> wrote:

> Circle is one of the hardest in Scratch. Unless I am missing a command.
> Cheers,
> Maria Droujkova
> http://www.naturalmath.com
> Make math your own, to make your own math.
> On Mon, Aug 31, 2009 at 7:19 AM, Bill Kerr <billkerr at gmail.com> wrote:
>> Image attached
>> Forty shapes to make in Scratch <http://scratch.mit.edu/> or some other
>> version of logo, such as Turtle Art<http://wiki.sugarlabs.org/go/Activities/Turtle_Art>.
>> It's hard to see the thumbnail but click on it for a larger view.
>> This is one of the best sheets ever for teaching maths (designed by Barry
>> Newell):
>>    - the logo turtle or scratch cat acts as a transitional object between
>>    the concrete maths shape and the abstraction of the script that makes the
>>    shape
>>    - the sheet includes both simple and complex shapes, increasing in
>>    order of complexity, there is a challenge there for everyone
>>    - many of the more complex shapes are made up of combinations of the
>>    simpler shapes
>> Source: Barry Newell's Turtle Confusion (1988)
>> _______________________________________________
>> IAEP -- It's An Education Project (not a laptop project!)
>> IAEP at lists.sugarlabs.org
>> http://lists.sugarlabs.org/listinfo/iaep
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