This is a simple first program in Scratch.

Start Scratch.

Scratch has 3 main areas – the area with the program blocks, a central open area where the script is placed by moving blocks and a stage.The default character or Sprite as it is called is the Scratch Cat. In this simple example, the cat will be deleted and a user created sprite used.See below for important areas and tools.

More details: http://www.digitalartforall.com/648/scratch-creating-patterns-using-repeat/