Touch the screen to see a Fibonacci square show up. The first square is drawn for you. When the last square is drawn, you will see the spiral beginning in red color. Touch within each square to see the Fibonacci spiral complete. Once the entire spiral is drawn, you can start over by double tapping any white space outside the blue square (for example, double tap the lower right corner to clear the drawing and start over from the first square). Enjoy!

http://appshopper.com/education/fibonacci