Lesson 21

Lesson 21: Sierpinski Fractal

This project illustrates the graphical representation of a fractal algorithm. It creates an attractive design by repeatedly adding points to the drawing. The consecutive points seem unrelated at first. As the program continues execution the fractal design becomes apparent. It includes three controls for the operation of the program and an additional control to position the sprites in the corners of the design.

Scratch Activity:
Study the scripts (see the main script below) and recreate the program. Reproduce the actions in the tutorial. Experiment with the location of the three targets.

Extensions:

Experiment with color, shade and size of the pen.
Experiment with the speed of the drawing.
Experiment by adding sound effects as the spider moves and turns.

Download the Project

View the main Script