California’s system for measuring improvement in schools was always better than the federal government’s, and a bill by state Senate leader Darrell Steinberg (D-Sacramento) would enhance it in some long-overdue ways, perhaps providing a national model for school accountability, the Los Angeles Times reports. SB 547, which has passed the Senate and deserves to become law, would still use test scores as one of the major yardsticks for improving schools, but it would add other important factors: graduation rates and the readying of students for college or careers…