Archive for December, 2008

Archimedes and the area of a parabolic segment – squareCircleZ

Sunday, December 14th, 2008

Archimedes and the area of a parabolic segment – squareCircleZ

Trigonometry tips @ squareCircleZ

Thursday, December 4th, 2008

Murray Bourne’s IntMath Newsletter this week includes a nice preamble to the study of Trigonometry. I’d like to be able to link to that item specifically when introducing the topic, so maybe I’ll ask him to isolate it if he has the time.

globeandmail readers on copyright

Wednesday, December 3rd, 2008 Your thoughts on copyright in Canada

BCcampus OER site – Free Learning at EdTechPost

Wednesday, December 3rd, 2008

Scott Leslie writes about the BCcampus Open Educational Resources site with some new ideas for using social networking sites like

HERETICAL Dyson on the Edge

Wednesday, December 3rd, 2008

Freeman Dyson’s HERETICAL THOUGHTS ABOUT SCIENCE AND SOCIETY as expressed in “the Edge” are a source of some disappointment and frustration to me. Skepticism about a bandwagon is always appropriate, and even more so is it about the various claims for proposed solutions. But to require a rigorous standard of proof in the face of a possible threat that is great enough to merit the precautionary principle and to present spurious “solutions” like adding .01inches of topsoil on every sqare foot of exposed land on earth (when in fact worldwide wherever we live we do many times the reverse of that) are just irresponsible.