Maybe just move on to prealgebra then. He could do alcamus at school if they want on line stuff. If he likes BA, Khan probably wouldn't do it for him. My 9 year old has just started 5th grade and has been finally advanced 2 years in maths. Unfortunately that puts him in the top class and I think he might still be near the top in the advanced class. I am going to start him on AOPS PA to give more depth to what they do in class then hope I can organise his maths for the two years after this.
Eta. If you could get permission to start school late the kids would accept it pretty quickly and may even be envious. Ds9 just has someone from the other class fetch him when it is time.
Last edited by puffin; 03/08/17 09:20 PM.
