Dedicated to all those mathematicians out there.
The wallpaper version is available at the preceding link.
Today's Gratitude Item: Realising that we are not stuck with the default "school" theme* in Moodle. As in each user can opt for a different theme if the wish, simply by editing their profile. My students can change how theirs looks too which is great as the default (ie: school) theme is really ugly and has loads of issues. I don't think our IT guy has realised that everyone can opt for a customised theme but what he doesn't know won't hurt him. In the meantime, it was fun / interesting to see how the girls all changed their theme but most of the guys opted for the default as they were afraid they would not be able to find their way around a new look (even if the new look was much nicer).
*"Themes" in Moodle dictate the formatting (colour / font / and even layout) of Moodle pages - so changing the theme is quite a big deal and can result in increased (or decreased!) functionality. It's a bit like applying a customised skin to your browser - only more so.