This story is part of a series on how we learn—from augmented reality to music-training devices. Alex Zhang is shredding on the piano. He sits at a shiny black Steinway grand and rocks back and forth ...
COLUMBIA - As one of the first Suzuki violin teachers in Columbia, Siri Geenen has taught for 18 years. Among the 200 students she's had over the year, the youngest is only three-year-old. It's almost ...