With any experimental program, the question is always “is it replicable and affordable?”

If the program works only on a small scale, it may not be replicable or scalable.

In this discussion of Houston’s Apollo program , we learn that the program started with mass firings and intensive tutoring in math. The designer of the program said it might close the achievement gap in three years, but that seems optimistic. Math scores went up, though not as much in following years, but reading scores did not.