At the moment, the most comprehensive collection of tutorials are in www.tokylabs.com/learn . Nevertheless, I am posting here three files that will help you to start.

1.- First Steps tutorial: With this, you will understand what steps to follow to make your very first project. Here is a link: http://tokylabs.com/presentations/First_Steps_EN/index.html

2.- Debugging Checklist: If you made a mistake on your project, most probably is listed in this simple doc.

3.- Blocks index: It is a simple descriptive list of the most common blocks you will to make your projects.