8. My children's teachers demand students to show all their working for any calculations. If the calculations are different to how they were taught at school, how can they do this?

Students can give what their teachers want. If they decided to show their teachers the Maths Maestro methods, then that is their choice. Their teachers should be impressed that their students know quicker, better and more effective ways to calculate! Teachers are required to teach a set curriculum, but their methods of teaching might not be the best.