Have you tried weaving wool with children? This is an easy craft for youg children to grasp the idea of. You can buy weaving sticks online, or you could make your own out of wood.
Here is a simple Weaving to start with.
Its a great way of using up old pieces of wool. The children can make rope, belts, bag straps, purses etc, the ideas are endless.
So see if you can have a go at this rewarding craft.