Tim is a highly respected leader in Montessori education and teacher training, with over 50 years of experience in early childhood and school leadership. He served for 22 years as Head of the Barrie School in Silver Spring, Maryland, and is the co-founder of the Institute for Advanced Montessori Studies and the Center for Guided Montessori Studies (CGMS).
 

He currently serves as co-Head of the New Gate School in Sarasota, Florida, where he continues to mentor educators and support the development of high-quality Montessori programs and schools worldwide.
 

Tim is also a renowned author of multiple books on Montessori education, school leadership, and child development, including How to Raise an Amazing Child the Montessori Way (with Dr. Paul Epstein), Building a World-Class Montessori School, Finding the Perfect Match, Master Teachers, and Starting a New Montessori School.
 

Through his work, Tim has helped educators and school leaders globally build sustainable, impactful Montessori learning environments and teacher training programs.