A tutorial on binary trees and terminology, along with examples for binary tree traversals preorder, inorder, postorder and level-order. Presentation is as a slideshow such as used in a lecture. The complete source code is shown for each mode of traversing the tree. In each step the current command is highlighted using colours.

Clear presentation, should be easy to follow. The examples can get a bit tedious.

For detailed instructions on how to install Animal and run Animal AVs, see: http://www.algoanim.info/Animal2/?q=node/290. Once you have installed the Animal .jar file and downloaded/unpacked the .zip file of Animal animations, you are now ready to run Animal. Run the .jar file to start Animal. Then go to the "Open" menu item, and browse to where you put the animal animations you got in the .zip file. Pick this AV from the list. You can then step through the animation, or use "kiosk mode" to have the steps fed to you at a constant pace.