In message <8ce03b8075e30e3-2654-31...@webmail-m156.sysops.aol.com>
darkro...@aol.com wrote:
>
> I work at a school and started an environment club last year. As a solar
> project for the up coming school year I would like the kids to make an
> analemmatic sundial. I am completely new to sundials and need to learn what
> I can during the summer so I can teach basics to my group of 5th graders next
> year. The sundial will be painted on the large blacktop area. I got
> calculations from the website
> http://www.jamesriverstudio.com/sundials/calculator/Dial.xhtml#setupAnchor
>
> I made a small sundial in my driveway and it worked. I do need to make
> additions for daylight saving. I have seen two ways: a second set of hour
> points above the first set or making one hour point and have the circle for
> the hour divided in half, one half at the standard hour and the other half
> daylight saving hour.
>
> Questions:
>
> Has anyone used the above website? Bill, the person that has been replying
> to email, has been very nice and helpful and recommended me joining here to
> get more information on sundials. Also the North American Sundial Society.
>
> How big would I need to make a sundial for elementary students? I have a
> very large area to work.
>
> Since I am learning all this too and finding the information can be a bit
> confusing what is the simplest way to teach children? I want them to see
> different kinds of sundials and make a small ones out of paper.
>
> I look forward to reading the archived threads and learning what I can.
>
> Thank you,
>
> Pat
Dear Pat,
Thanks for contacting the "Sundial Mailing List", and no doubt other
members will also respond to your enquiry about an Analemmatic dial.
If you may want to do your own calculations, then a very good website
is: http://plus.maths.org/content/os/issue11/features/sundials/index
However, if you prefer the choice between any full-size layout on the
ground and/or small working models which each child can make - then I
would recommend looking at page : www.sunclocks.com/pics/fs-013.htm
For a fairly small fee, "Modern Sunclocks" will provide a customized
set of plans for your school - including any 'Daylight-saving Time',
so that you can make a schoolyard layout or just those small models.
Our local Educational Authority would not allow us to have the full-
size version on our playground (they felt that it was too dangerous
for the children!) - so we just made small working models, instead.
The plans also take Longitude into account, so that it tells correct
'clock' time, no matter where your location is within the Time-zone.
I hope that the information, above, may be of some help to you - and
please let us know how you get on (with some pictures, if possible).
Sincerely,
Martina Addiscott.
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