Rob Barnett teaches mathematics in a D.C. public high school.

He is faced every year with a dilemma. Does he pass or fail the student who is not ready, who has not mastered the course?

He notes that D.C.’s graduation rate has soared, yet its NAEP scores are virtually unchanged since 2005. Its PARCC scores are even worse.

NCLB and Race to the Top pressured teachers like him to get the graduation rate, at any cost. If you can’t succeed, give the appearance of success.

He has an idea for a very different way to design schooling: Mastery learning.

Why should a student have to retake and pass an entire year when there are parts of the course he understood and parts he did not?

What do you think?