If you didn't know, California's budget is tight--and getting tighter. There will be more cuts coming to education, and we're sweating the "May revise" to the governor's budget. One way my school district is reacting to this is to limit summer school to "credit recovery" only, which means that only students who receive F's in a course, and hence do not get course credit towards graduation, may attend summer school. Students who get a D officially pass a course and get credits.
At first blush the district's policy seems reasonable, but a little deeper thought reveals that it creates a very perverse incentive to fail. If students try but get a D, and want to move on in math, they'll need to retake the course next school year. On the other hand, if they fail the course, they can retake it in summer school and move ahead next year! Two math teachers have already reported having the conversation, "If I don't get a C, can you give me an F instead?"