The problem I have with it is mostly that it's a giant experiment. Teachers are always looking for better ways to teach. But an one teacher in one classroom had the ability to instantly see what isn't working and change it. And even if they are way off base they are only effecting one classroom. But what happens when every teacher is forced to teach the same material in the same way? The very idea should sound ridiculous to anyone who teaches. My daughter was okay but not great with math to start this year. The "short cuts" they are teaching for addition she mostly gets and is still keeping up. The subtraction has totally baffled her to the point that she almost can't do simple subtraction anymore.