I'm actually finding this painful to watch.
We have been told by school and EP that DS2's ability is somewhere between top 0.01 and 0.1 of population.
I don't do any of that stuff those parents do! His primary school provides some support (secondary teachers for maths & science) and at his request, we take him to one maths or science masterclass per term. But the rest of the time he is reading or playing on Minecraft!