bodmas blog

Pop some graphs on the gcse blog and ask for the equations by e-mail?

“Gestures that complement rather than simply illustrate verbal instructions can boost children’s ability to complete problems in mathematics, researchers report.”

Complementary gestures are illustrated as…

“When using complementary gestures, however, the teachers pointed to each of the numbers on the left and then signalled the subtraction of the five on the right side by scooping their hand [...]

Google Earth and data handling activities

Google Earth for Mac OS X

To remove blank lines from a text file in Textwrangler, you have to run search and replace, tick the ‘use Grep’ option and then search on the pattern ^r. Replace with nowt and the effect is magic. A boon to the ‘everything in one big text file’ advocates.

The pattern < /?[^>]> can be used to [...]