"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) Building Bridges: Data Help Instructional Coach Make Vital Connections with Teachers (Theresa Long); (2) NSDC Tool: Instructional Coach Formative Evaluation and Data Collection Form; (3) Lessons from a Coach: Give-and-Take Changes the Climate; (4) Focus on NSDC's Standards: Opportunities Flow from Use of Data (Joellen Killion). (Individual chapters contain references.) [For "Teachers Teaching Teachers," Volume 5, Number 2, see ED507664.]