An Illinois elementary school principal realized that the district's "yellow tablet" teacher-evaluation system was not working. In lieu of observations by the principal, teachers agreed to visit one another, sometimes in teams, and the principal volunteered to substitute for observing teachers. The new process demolished barriers between…

In 1995, a racially and socioeconomically diverse school in suburban Illinois opened with new curriculum and instructional approaches and supportive technology. Change occurred rapidly, leadership was crucial, vision directed staff efforts, and negativities were minimized. Staff made important decisions, everyone learned and taught, and teachers…