A
kaleidoscope is a small tube in which the viewer can
see beautiful colours and designs that feature rotational
symmetry.
The
image inside a kaleidoscope changes when it
is turned because the coloured glass or plastic inside
the cylinder moves. As a result of this movement the
mirrors, which are arranged to reflect a pattern several
times, create different patterns.
These images were made by made by taking digital
photos through the hole in the kaleidoscope above.
Maybe
you could have a go at this in your class and print
them out for a wall display.
Now
it's time to have a little fun on your screen or an interactive whiteboard!
1. Write your name into the spaces below & press
GO.
2. Move the mouse pointer over the black area to make
different patterns.
3. Experiment with different words and symbols to make
your own patterns of rotational symmetry Order 4.