The Making Science Mentors program trains middle school science teachers to be effective mentors for other middle school teachersusing a long-term, inquiry-based approach to teaching and learning how to be a more effective science educator. The principles of this guides procedures and materials were field-tested with 50 mentors and new teachers in a variety of middle schools. Making Science Mentors includes materials to set up and run a comprehensive program: 10 session-by-session lesson plans; a planning and observation protocol to guide mentor-mentee interaction, both in conferences and during classroom observation; handouts and citations (on paper and on CD) for use in preparing mentors; and video clips on DVD that show middle grades science classrooms and teacher mentoring.