Learning how to code.
This is the complete catalog of available tutorials. If you'd like some guidance through learning a specific topic, try out Learning Paths.
GreenfootKara is a visual and interactive introduction to programming based on the Greenfoot IDE. An entire beginners course of 16-20 lessons.
GameGridKara is an introduction to programming with the mini-world Kara. All scenarios can be used in any IDE like Eclipse, Netbeans or BlueJ.