Scratch Programming Fractal Tree Activity

One of the areas of the national curriculum that we should be introducing students to is RECURSION.
This is an excellent activity to introduce that concept in a visual way with a simple task to create a fractal tree in Scratch programming.

This activity I had a learning observation on. I had my students work in small groups to try and complete the main activity together. When they finished this, they were to research other fractal activities on-line and see what they could create.
Students really enjoyed this activity at the end of the Scratch topic to introduce a very complex topic that is not part of GCSE, but that appears again at IB level and A level.

I expect students to learn that recursion is a complex rule that simplifies programs, but is very difficult to understand and it is a function that uses itself to solve a problem.