[cma]

Why have grades like this that then still move everyone on to the next class. Don't move on until you've mastered the prerequisite. Why have a track of people making C's moving on from Algebra I to algebra II with the same people making A's. Get to college earlier by mastering, rather than a weird compounding competition that kicks off in middleschool.

Something like that was advocated by the Khan academy guy, but I'm not sure if he worked out a full replacement system. There are some things in the current system like honors classes or retaking the classes for people who got an F, but why have the F ruin their chance at college if they later master it and get an A? If they always lag but eventually get there, I guess an argument is college would be too expensive if it took them a long time to get through it.