Summer test scores typically increase, in six weeks, from pre-test averages of 30% to post-test averages of 90%. On program evaluations, typically about 98% of students grade the program with A’s or B’s (85% A’s). Parent grades are even higher. For students who have participated in the Math Corps for at least three summers, the average ACT math score is over 20, significantly higher than Detroit’s average and on par with state and national results. Best estimates place the high school graduation rate for Math Corps students at over 95%, with about 90% of those students going on to college.