Symmetrical flowers

You need:

1. transparent drying hobby glue
2. liquid watercolour
3. brushes
4. white cardboard cut in squares of 20 by 20 cm

After a short explanation about symmetry, students draw a symmetrical fantasy flower on their cardboard. When ready, the lines have to be traced with glue. After drying (take a day for this), the several flower parts are painted with liquid watercolour. The glue will resist watercolour.