He only wrote once for Politics K-12 that I can dig up, but Sean Cavanagh’s departure from Education Week is a big loss. He may have been the newspaper’s specialist in covering math and science, and its prolific Curriculum Matters blogger, but he had a knack for politics, too.

After all, who could argue that there aren’t politics involved in the common-standards movement, which Sean has been faithfully tracking. Think squabbles between education advocacy groups, and questions about the openness of the process.

That’s not even factoring in the politics involved in states’ own standards setting process. Think of Texas and evolution, which Sean has chronicled. And of course, all wars involve politics. Even the math wars.

Sean’s last day at EdWeek is tomorrow.