Watch this:

An Example (this opens in another tab)

You will need to go here and create an account. Use your school district email to set up your account. When you create your username, remember to keep it school appropriate and easy to remember. Create your account HERE. (This opens in another tab)

Check this out for a tutorial. (opens in a new tab)

Then, from the Scratch page, open Tutorials and do 3 tutorials from different categories of your choice.

ScratchTutorial