Tennessee this year is ramping up an alternative component to its teacher-evaluation system for the arts that tackles a thorny question many states are grappling with: how to evaluate teachers on student growth when standardized-test scores are not available. The answer in this Tennessee enterprise is portfolios of classroom work. And not just the final, polished products, but the before and after, showing student improvement over time. Teachers submit their portfolios electronically to the state, and they are scored by trained peer reviewers, who are fellow arts educators. The article is in Education Week.