here is my numicon shape for symmetry!
symmetry is pretty easy but difficult to explain. You can use a ruler and draw a line in the middle of a drawing then you should see that between the lines both sides are the same, that is symmetry, lets have a look at this. get a piece of paper and then flip it horizontally and vertical. the reason why horizontal is spelt like that is because think of a horizon, you cant draw one vertically right? so you wan draw a horizon horizontally. and thats why!
I did this create task with one of my friends Harsirat. it was supposed to be in the shape of a house but i guess its close enough hehe.