A couple of weeks back I looked at the statistical relationship between SAT scores and the probability that an education major ends up teaching the year after graduation (based on a logit I ran using the Baccalaureate and Beyond data). Here’s the analogous picture using undergraduate GPA.
Don’t take the picture as gospel, but it’s probably roughly right. Students with higher grades are significantly more likely to end up with teaching jobs. Just as a benchmark, I’ve drawn a green line at the average GPA (all students, not just education majors.)