Gyaltsan (center) teaches students how to use his multiplication chart at a primary school in Lhasa, Tibet autonomous region. [Photo by PALDEN NYIMA/CHINA DAILY] Gyaltsan, a Tibetan man from Nyingchi ...

I've been teaching second and third-graders mathematical problem solving for six years. In that time, I've learned that kids are more apt to enjoy math if they already have a strong foundation. Kids ...