Maybe, Artechim, but as I said, I dealt with numbers abstractly (and was doing times tables at 5, don't have a clear memory of it beforehand but could have been) and hated counters. So try it, but it may not work. But it may, everyone has different brains.

I make volcanoes outside, you are right about the mess. Mints into a bottle of cola (outside!) also make an excellent space rocket.