[squeak-dev] Re: Suggestions for 7-9 grade algebra, math, geometry

Bert Freudenberg bert at freudenbergs.de
Sat Sep 13 23:32:20 UTC 2008


Am 14.09.2008 um 00:27 schrieb itsme213:

> "Matthias Berth" <matthias.berth at googlemail.com> wrote in message
>
>> it will go in a circle.(you ´can put the pen down to see the trace)
>> Let the kids try that for different speeds and angles - it is  
>> always a
>> circle. WHY?
>
>> Make two mice, one moving in a circle, the other one just moving
>> towards the first (chasing it). Watch the curves that the second  
>> mouse
>> draws.
>
> Nice, thanks for the hints.
>
> Any thoughts on pros/cons of Scratch vs. eToys?


Scratch is easier to get into and more explorable, but has a limited  
set of functionality (which is good from a learner's perspective).  
Etoys is more powerful in many ways (and you can always escape to full  
Smalltalk) but also harder to grasp.

The website with project sharing is another plus for Scratch. There  
are project servers for Etoys, too, but not a central one.

- Bert -




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