Club Squeak

In any Squeak  environment, the Object Explorer can help you learn how things work. The following link has a step-by-step, illustrated example:

Often in Squeak, whenever there’s interaction with the UI, the most direct path to understanding starts with the morph you are clicking. You can cmd-click(Mac) or right-click (Windows) on any morph to bring up a set of icons called a halo.

Getting Started With Croquet 

* For folk not familiar with Star Wars, see the Force