Dear Max,
I would like to share something I learned this morning. I saw a PISA list 2012 about the average mathematics scale. Canadian 15-year-old students get 24 points above the OECD average. Just be the No. 9th among 65 countries. It's a good news. Chinese students are always No.1 in mathematics, you know,my kids,they transfered school from China to Canada, I was worry about their mathematics before. But now, it looks not too bad.