- From: Jonathan Chetwynd <j.chetwynd@btinternet.com>
- Date: Mon, 20 Aug 2001 07:21:11 +0100
- To: <w3c-wai-gl@w3.org>
perhaps, this would serve as a good analogy to explain the variety of simplicity, and help explain why we need an alternative to the current guidelines? we have: a name: the 4 colour theorem a title: Every planar map is four colorable a brief description: Is it possible to colour any map, so that no borders share the same colour, using only 4 colours? or similar an illustration: http://www.math.gatech.edu/~thomas/FC/usa.gif a game: http://sourceforge.net/projects/focovil/ a new simpler proof: http://www.math.gatech.edu/~thomas/FC/fourcolor.html a reference to a currently accepted proof: K. Appel and W. Haken, Every planar map is four colorable. Part I. Discharging, Illinois J. Math. 21 (1977), 429-490. a description of the problem with this proof: "(it) is extraordinarily complicated and tedious, and as far as we know, no one has verified it in its entirety." see a new simpler proof. a test? well if there was one..... -- It is unlikely that accessibility will be solved in the near future. The proof of the 4 colour theorem is generally accepted to be understood by very few, this may help those having problems relating to issues relating to comprehension. We need to understand that users have different preferred learning methods, and those reading the guidelines are presumably seeking to learn. Not everyone prefers lists, some (like me) prefer to steal code snippets from working examples, others like complete working modules like .class, yet others like wizards, some prefer a workbook which takes one thru each term with tests of partial learning, many enjoy playing a game with levels, plenty learn from good audio-visual materials some of which offer interactive tests. The list is endless, and I strongly recommend offering an alternative to the current 'dry' list of guidelines. best wishes jonathan chetwynd IT teacher (LDD) j.chetwynd@btinternet.com http://www.peepo.com "The first and still the best picture directory on the web"
Received on Monday, 20 August 2001 02:44:29 UTC