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Date: | Wed, 2 Jul 2008 12:19:34 -0400 |
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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I wouldn't worry about using K'Nex because it's a commercially available
product. One kit (usable by 1-3 students) in, say the bridge-building
category, goes for $29. (So likely enough for a class is over $300.) Few
schools can lay out that kind of scratch. This is from K'Nex's own
website (http://www.knex.com/)
The downsides of K'Nex: the aforementioned price, plus lotsa tiny
pieces.
Upside: they work really well, kids love using them, high durability,
the company also publishes lesson plans.
When doing our bridge-building outreach, we use water as the weight.
Just measure off in water bottles how much volume = how much weight -
that makes it easy to add more. (And, if you're using this for outreach,
you don't have to carry a bunch of weights with you.)
Jonah Cohen
Outreach & Public Programs Manager
The Children's Museum
"If you hear only one song this year, there's something terribly wrong
with you."
-They Might Be Giants
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