School never used numicon with DD, was only for lower ability children. What rubbish. A friend introduced it to me then found out school had it but as DD up to expected level didn't need to use it.
So for home use it came. To be honest not worth getting the home user set but making up your own from the different parts and do not buy from supplier direct as expensive.
My dd has now had it at home since year 2, she is now year 8 level 7+ in maths and we still use it, yes a high achiever in maths still using Numicon. Its more about thinking outside the box and what you can do with it. So how to use it at home....