[IAEP] Ideas

[Alan Kay]

Thanks Steve,

Yep, and I would love to do the building blocks for this a whole lot better in 
the successor to Etoys (which we are starting to work on).

Cheers,

Alan.




________________________________
From: Steve Thomas <sthomas1 at gosargon.com>
To: Alan Kay <alan.nemo at yahoo.com>
Cc: Caroline Meeks <caroline at solutiongrove.com>; iaep at lists.sugarlabs.org; 
Patricia Curtis <patricia.curtis at gmail.com>
Sent: Wed, October 27, 2010 7:05:18 AM
Subject: Re: [IAEP] Ideas

Folks,

The Physical rods are best, but here is a set of virtual rods with direction 
arrows with the ability to change the transparency of all the rods on your 
playfield in Etoys (to see how its done, just get the hale for a particular 
buttion and from the menu click on "open underlying scriptor"

Actually it would be fairly easy to have kids create thcleir own sets of Virtual 
rods in Etoys using polygons (hint: shift click on a polygon to get its 
handles). The playfields in the project referenced here can be used you could 
have the kids drag out their own playfield then from the menu select "playfield 
options ..." and select "grid visible when gridding" and "use gridding". Then 
from the same menu select "set grid spacing ..." 

Stephen


On Wed, Oct 27, 2010 at 8:28 AM, Alan Kay <alan.nemo at yahoo.com> wrote:

Hi Folks,
>
>We have used Cuisenaire rods a lot for all grades. 
>
>We always take magic markers and draw arrowheads on one end of the rods to give 
>a sense of direction to the magnitudes when used in operations. 
>
>
>Vectors are a very powerful way of thinking about numbers and quantity and this 
>is a great way to get them started with a measuring and magnitude idea that 
>generalizes to more dimensions. 
>
>
>After a while you can start to use slender dowels for 2D calculations, etc.
>
>Etoys objects are actually vectors, and Etoys actually has a "hidden" vector 
>vocabulary for doing vector arithmetic in two dimensions.
>
>Cheers,
>
>Alan
>
>
>
>
________________________________
From: Steve Thomas <sthomas1 at gosargon.com>
>To: Caroline Meeks <caroline at solutiongrove.com>
>Cc: iaep at lists.sugarlabs.org; Patricia Curtis <patricia.curtis at gmail.com>
>Sent: Tue, October 26, 2010 9:49:44 PM
>Subject: Re: [IAEP] Ideas
>
>
>
>On Thu, Oct 21, 2010 at 12:01 PM, Caroline Meeks <caroline at solutiongrove.com> 
>wrote:
>
>I have had requests for a few things over the years.
>>
>>
>>http://en.wikipedia.org/wiki/Cuisenaire_rods - these are popular 
>>math manipulative and an online version would be cool.
Here are some Cuisinaire Rods in Etoys (sorry Patricia, I am NOT trying to 
discourage you, just support your request on what is needed)

Fraction Bars and Number Lines and  Fraction Tools both have Cuisenaire Rods 
built into the projects. The rods can not only be used for activities shown in 
the projects (and other activities and lesson plans), but also for kids to 
journal/describe their understanding of fractions and units.

Stephen
>
>_______________________________________________
>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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