Tux Typing
tuxtype.sourceforge.net
Typing tutor for Linux, BeOS, or Windows starring Tux the penguin. [Open Source, GPL]
GCompris
gcompris.net
[Unix] Distributed under the GPL. For young children, includes activities like discovering the mouse and keyboard, telling time, puzzles, memory games, and reading training.
Gear-Up
simtel.net
Create virtual flash cards for DOS from study material, test yourself, and keep score.
Maths Race
members.tripod.com
Give the right answer to every questions to win the race. (Windows)
Jaw Wars
sassquad.com
Brush those teeth and defeat the germs before they rot and drop out. One player, simple click Shockwave game.
Picture Perfect
members.tripod.com
Test your observation ability on Windows by finding the differences between to photographs.
EURO Game
perso.wanadoo.es
Learn about the new European currency. (Windows)
CRACK: Educational Software to Practice Calculating
licht.onlinehome.de
Provides arithmetic tasks to be solved on Windows. These tasks begin very simple and get harder.