[squeakland] Artifacts in ObjectCatalog

[Steve Thomas]

Subbu,

This is the second time you have referenced "seed arithmetic" and both uses
you mentioned provide very good metaphors to think about mathematics.

Is there any good references on the various "seed games" I can look at?

Thanks,
Stephen

On Fri, May 28, 2010 at 10:17 AM, K. K. Subramaniam <kksubbu.ml at gmail.com>wrote:

> On Friday, May 28, 2010 12:52:40 pm Hilaire Fernandes wrote:
> > I also added an Artifact DotInTable to represent collection of token in
> row
> > and column.  It can be used to represent graphically the multiplication
> of
> > two integers.
> While on the topic of multiplication, the Holder Etoy is very handy for
> learning about factorisation and prime numbers - one of the toughest topics
> for young kids.
>
> A child can draw a small toy and drop a number of its siblings (say 24)
> into a
> Holder and then try to resize it using its yellow handle icon. The Holder
> automatically adjusts its rows and columns into 6x4, 2x12 and so on. The
> count
> can be displayed alongside by dragging a simple viewer from "Holder's
> count".
>
> If the length and width viewers are also put alongside, then the game can
> be
> used to learn about squares too.
>
> As a kid, I used to play this game with a 10x10 grid (laid out in sand or
> on
> the floor using chalk/coal) and a bag of seeds. Each player takes turns to
> pick
> a handful of beans blindly from the bag and place them one-per-slot in a
> tight
> rectangle to score as many points as the beans placed. The one who picks a
> prime loses a point.
>
> Subbu
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