The Philadelphia Inquirer posted an editorial saying it is time to revise the charter school law, written 20 years ago.

The charter-school law, over 20 years old, has never been revised to improve accountability or performance.

Charters were intended to create and spread innovations into traditional public schools, but the evidence they have done so is scarce, and study after study has found charters trailing traditional public schools in key areas of performance.

The latest of those studies, from Philadelphia Citizens for Children and Youth, calls for stricter accountability measures for charters’ performance and renewals.

Last year alone, public school districts paid $1.5 billion for students attending a charter – out of their full budgets. And every action the state has taken – taking away reimbursements to the districts for those costs, being less than rigorous in oversight, and pushing an approval process that would take further control out of the districts – has created two separate education systems that too often work against each other.