My son has been getting into pi and measuring the area of circles, too. But he's still using a calculator to help him. At least he's getting into it, though!

On a non-academic note, DS6 has been learning to playing basketball for over year, but hasn't felt ready to play on a team. I have to admit, he wasn't exactly great when he started. I was worried about how his playing would agect his self esteem, and I tried to steer him towards a sport that he played well. But, no. He wanted to stick it out, and he has been practising for sooooo long- now he's ready to join a team! I am so proud of him; he never has to practise anything, and I worried that he would take that for granted. He has proven me wrong!