This guide for teachers is designed to be used with the Mentally Tough principles for junior and senior high school students. Each chapter in the teacher's guide parallels a chapter in the book for students. The activities suggested in each chapter cover a variety of skill areas and will accommodate a variety of learning styles. They are grouped into four sections: (1) activities; (2) ongoing challenge; (3) success stories; and (4) journal suggestions. The activities section contains lists of activities teachers can do with students to enhance students' understanding of the material in the book. The ongoing challenge suggestions are designed to help students put the Mentally Tough principles to immediate use. Chapter 1 of the teacher's guide asks the students to pick one area in which they would like to see their performance improve. Each subsequent chapter of the teacher's guide contains an activity designed to help students apply what they have learned to the ongoing challenge. In order to encourage students to put what they have learned into practice, every chapter of the teacher's guide includes suggestions for sharing success stories. Having students keep a journal throughout the experience is recommended to help students become aware of the factors that affect their performance. Journal suggestions are included in each chapter to help students begin writing, and the teacher's guide provides tips for helping students get started. (LLL)