Archive for May 2012
When textbooks are free …
Posted by: Gary Ernest Davis on: May 22, 2012
Some time ago I wrote a post “ When academic textbook prices drop to > When academic textbook prices drop to $0.00 what will publishers do?
Should we get rid of the “=” sign in mathematics?
Posted by: Gary Ernest Davis on: May 16, 2012
Should we get rid of the “=” sign in mathematics? Probably, since it creates more confusion than it alleviates. Robert Recorde had a lovely idea in 1557 when he introduced the “=” sign, writing “… bicause noe 2 thynges can be moare equalle.” x Studies have demonstrated that students have 3 problems with equality, as […]
