Pixel Tutorial - Sprite making

http://www.derekyu.com/extras/pixel01.html

Looks like a very good tutorial for those students who have a particular interest in the graphical side of making games - sprites.
From and 'free and open education for all' stance it is a pity that it has been written with the Photoshop tool in mind.
The author is the maker of 'Eternal Daughter'. The rest of Derek's site is worth a browse at least.