Symmetry is one of the easiest topics to teach. The idea of line symmetry is probably innate and is cultivated from an early age. What parent
does not have proudly displayed their 4 or 5 year old's first attempt at combing
art and maths; paint splashed on a piece of paper and folded over to produce a
glorious symmetrical design. How many homes throughout the world have these
masterpieces attached to fridges or other suitable surfaces?