A colouring book, Mathematical Coloring from Marshall Hampton
by Simona Riva
Drag the red dots and the center red dot to create a kaleidoscope effect.
Which figures have rotational symmetry?
By Alex Chik
Activity: Draw a snowflake
Be sure to turn trace on, and try out more or less lines. This applet ‘clears’ when you zoom in or out, so take a screen shot first if you love your design.