CA's educational system fell apart long before that, jfern. They were the first to adopt the experimental education methods from the 60s and early 70s. They are now among the last to drop these widely discredited programs.
What experimental education methods? I've haeard that CA had pretty good schools before Prop. 13 was passed in 1978.
Personal grammar (there is no proper grammar, write how you want), personal spelling (same as above, for spelling), hands off science instruction (let the kids loose in a field so they can learn biology) and a variety of other hair-brained, highly unsuccessful programs got their start in California before Prop 13 ever saw the ballot box. Some schools still practice them.