Under current rules, at least two-thirds of LAUSD tenth graders are not on track to graduate in 2017. A rule passed in 2012 requires that high school students pass college prep courses with a C grade or better in order to graduate. The plan was intended to create a more college-ready group of kids, but it hasn’t quite worked out that way. So tomorrow, the school board will consider whether to lower the grade requirement from a C to a D. Why aren’t students making the grade?