Literacy, Student Engagement, Images and TED

Jesse Brown, host of TVO's Search Engine podcast, spoke at the recent TEDxOntarioEd event in London. It is kind of ironic that I listened to this talk on Rodd Lucier's Clever iPod app, given its heavy reliance on visuals. I did this on the same day that I received word that one of our innovative teachers, Lynda Marshall was awarded a Literacy prize from Nipissing University, in part for her work with graphic novels.

One of my former students, David Kennedy, has been working on Bitstrips as well. Bitstrips for Schools is licensed by the Ministry of Education for Ontario's publicly-funded schools.

Enjoy!

Regular Expressions in Actionscript 2

Regular Expressions are a powerful method of working with text strings based on dynamic patterns. For example, you might want to extract all the numbers from a string like "Michael travels 550km in 6.2 hours using 40L of gasoline", or replace any occurrence of "INV" followed by an arbitrary number of alphanumerics followed by a space with "- reference removed -".

Regular Expressions are useful in parsing user input or creating grammars for strings.

Flash decided not to support a RegExp class in Actionscript 2, though it is implemented in Actionscript 3, Javascript, and JScript.

Pavils Jurjans bemoaned this fact and created his own RegExp class for Flash 5, which was encapsulated by Joey Lott into a .as file for Actionscript 2. Pavils also created a very handy tester, which together with websina's page, helped me to get started with regular expressions.

The CLIPS programmers have started to use our version of the class, which has been documented with ZenDocs, and includes a trim, rtrim, ltrim and slightly modified replace method. A simple tester .fla is available to interact with the class.

I probably feel as excited learning this new skill as the fellow in this xkcd.com comic.