Jason Felch & Jason Song:

California’s chance to receive hundreds of millions of federal educational dollars may rest heavily on an obscure and long-neglected piece of education infrastructure: a statewide data system that tracks students, teachers and administrators year to year.
Such education systems are expensive, complex and do not win elections for politicians. But experts say they are essential to learn how much of the nearly $60 billion that California spends on K-12 education makes a difference, a fact that student achievement tests only hint at.
Last month, California rolled out the first component, a student database known as CalPADS. It will eventually make it possible to measure what works and what doesn’t in classrooms throughout the state. The second major component, a teacher and administrator database known as CalTIDES, will not come online until 2011.