These 27 real-life, down-to-earth case studies offer the tools and techniques to help educators improve their personal and professional practices as teachers, supervisors, and administrators in our ever-increasingly complex and changing schools and school districts. They contain strategies developed over the years that considerably improved the achievement and satisfaction of students. The cases range over a wide assortment of settings, from rural to inner city to suburban. The constructivist processes used are described carefully and the strategies are laid out clearly so practitioners can adopt them gradually—and safely. Included is a checklist in the fifth case study which presents in detail a model to guide practice. Topics covered include running a basketball team and cheerleading squad, teaching mechanical drawing in an inner city school (but lacking experience with the subject), and four invited cases that present a typical day-in-the-life of a constructivist principal, a department chair, a teacher in a charter school, and a middle school teacher who became contructivist.