"Teachers Teaching Teachers" ("T3") focuses on coaches' roles in the professional development of teachers. Each issue also explores the challenges and rewards that teacher leaders encounter. This issue includes: (1) Values and Clarity Build Classroom Language (Valerie von Frank); (2) Tools: Identifying and Clarifying Beliefs about Learning; (3) Voice of a Teacher Leader: Market Norms Bring Confusion (Bill Ferriter); (4) Focus on NSDC's Standards: Times Call for Mario's Powers (Joellen Killion); (5) Lessons from a Coach: A Guide on the Trail to Certification; and (6) Research Brief: 5 Strategies Target Bad Behavior (Carla Thomas McClure). (Individual articles contain references.) [For Volume 4, Number 5 of "Teachers Teaching Teachers," see ED504769.]