Tying teachers' pay to their classroom performance should, says Victor Lavy, improve the current educational system both by clarifying teaching goals and by attracting and retaining the most productive teachers. But implementing pay for performance poses many practical challenges, because measuring individual teachers' performance is difficult.…

The U.S. educational system invests heavily, in both time and money, in continuing education for teachers. In this article Heather Hill examines the effectiveness of two forms of teacher learning--graduate coursework and professional development. She focuses first on graduate education. Almost half of all teachers have a master's degree. Many…