science21 - Recently Updated Pages

science21 Home

Wardox — Sun, 16 Aug 2009 08:39:13 CDT

	Wardy's Page is an excellent resource for teachers of science and mathematics. There are some great websites on science, mathematics, education and a section called Play & Create for websites to stretch your imagination. We also have a science and mathematics teacher email list that keeps teachers informed about grants, PD opportunities, good articles and news stories and events for teachers and students. Click one of these links above for more details.

Wardy's Page is an excellent resource for teachers of science and mathematics. There are some great websites on science, mathematics, education and a section called Play & Create for websites to stretch your imagination. We also have a science and mathematics teacher email list that keeps teachers informed about grants, PD opportunities, good articles and news stories and events for teachers and students. Click one of these links above for more details.

Discussion Page

Emjayne — Fri, 06 Mar 2009 16:52:51 CST

Hi Wardy
Great articles.
In the search to improve student learning in maths- and dare I say it- in any subject- I think there are great gains to be made by "simply" improving teacher subject competency. Pedagogy is important, but useless -no- detrimental if the information being taught so effectively is inaccurate. Yet, in my decades of teaching I have had very little training that improves my subject knowledge. It appears this is where we should be spending our education $.
Food for thought.
Emjayne

Hello everyone. We'd love to hear your comments regarding any of the articles on the website.
Wardy

Calendar Events

science21 — Wed, 10 Dec 2008 22:30:06 CST

sensitive

Wardox — Mon, 17 Nov 2008 16:05:07 CST

You might have received an envelope like this and you are wondering what to do with it. Don't open it!!
You've got a single piece of paper impregnated with light sensitive chemicals similar to those used in cyanotyping. This process was the precursor to modern photography, discovered by the scientist and astronomer Sir John Herschel. In 1843 it was used by Anna Atkins to produce the first book made entirely of photographs. The white images on dark blue backgrounds gave the name to blueprints.

This non-toxic version of the original process can be used to produce some remarkable images (and can be part of some great science investigations).

Instructions:

Place the paper in a sunny spot and (quickly) place interestingly shaped items on top of the paper.
Leave it to expose for 4 or 5 minutes.

Developing and fixing your images couldn't be easier. Submerge the paper in water for 30 seconds to make sure that it's soaked through.
As the paper dries out you will see your pale positive image develop into a dark negative and you'll find its now fixed as the paper is no longer light sensitive.

See what other people have done and add your own image in the sunprint album