Ron Ritchhart, Ed.D., has been a researcher at Project Zero, Harvard Graduate School of Education, since 1994.  His research focuses on understanding how to develop, nurture, and sustain thoughtful learning environments for both students and teachers. Prior to joining the Project Zero research group, Ron taught for fourteen years and in 1993 received the Presidential Award for Excellence in Secondary Mathematics Teaching. Ron is the author of many articles and several books, including Intellectual Character: What It Is, Why It Matters, and How to Get It (Jossey-Bass 2002; 15,987 sold).  He is the coauthor and coproducer of the Creative Classroom Project video series distributed by Disney Learning Partnership, and he also produced a DVD about Visible Thinking. 

Karin Morrison is director of The Development Centre at Independent Schools Victoria  and Instructor for the WIDE World online course, Making Thinking Visible developed at Harvard  and was the in-school leader of the Cultures of Thinking project sponsored by the BialikCollege (Victoria, Australia) in collaboration with Project Zero.  Karin was also the co-convenor of the 12^th International Conference on Thinking.

Mark Church has been a teacher in both elementary and middle schools since 1992.  While in the classroom, Mark put into practice Harvard Project Zero research, including both Teaching for Understanding and Visible Thinking.  He is now the Learning, Assessment, and Instructional Resource Supervisor for the Traverse City Area Public Schools in Michigan.