South Bay Location – Primary Training Course:

Co-Director – Rebecca Keith
Faculty – Karen Bamberg, Maria Perez-Vizcaino, Lucille Santana, Hema Srinivasan
Faculty in Training – Pamela Jiang

North Bay Location – Primary Training Course:

Co-Director Emeritus – Susan Cohn
Co-Director – Jed Burchett


As an active classroom teacher, Rebecca Keith brings over 40 years of experience to the Maria Montessori Teacher Training Center. Rebecca has been training teachers through the MMTTC since 1981. She also founded and has been administrating her own school, One World Montessori School, Inc., since 1979. One World Montessori is privileged to benefit from the many unique curricula created by Ms. Keith, including Peace Education, a United Nations Day Celebration and an Earth Day Celebration. She also co-founded the Montessori Phoenix Projects, which brings free Montessori training and materials to some of the most impoverished regions of the world. Ms. Keith is a sought-after speaker and guest lecturer, and has spoken at such prestigious institutions as the University of California at Berkeley, Stanford University and Cornell University. Rebecca has a B.A. in Human and Community Services and a Master’s Degree in Educational Leadership from St. Mary’s College of California. She has completed her Ed.D. in Educational Leadership (ABD). Rebecca holds Montessori Certification for Primary and Lower Elementary levels.

Jed Burchett earned a Bachelor’s degree in Art History from Sonoma State University in 2002, and earned his Primary Teacher’s Certificate from Susan Cohn at the MMTTC in 2006. He also completed the AMI-NAMTA Orientation to Adolescent Studies at the Hershey Farm School in Huntsburg, Ohio in 2013. Mr. Burchett is currently the Head of School of Brush Creek Montessori School in Santa Rosa, as well as the Adolescent Guide.

Lucille Satana received her Montessori Primary Certification under Ursula Thrush at the MMTTC in 1992. Starting as Rebecca Keith’s assistant before becoming a full-fledged teacher, she has accumulated over 20 years of teaching experience at One World Montessori School. Ms. Satana also holds a B.S. in Applied Mathematics from the University of the Philippines. Ms. Satana began training teachers through the MMTTC in 2005.

Hema Srinivasan has been teaching for almost 20 years. She holds Montessori Certification at the Infant/Toddler level (0-3) and received her Montessori Primary Certification from the MMTTC in 2005. Hema has been with One World Montessori School since 1994.

Maria Perez-Vizcaino began teaching at One World Montessori School in 1999. Ms. Vizcaino received her Montessori Primary Certification from the MMTTC in 2008, and also holds an M.A. in Philosophy and Educational Sciences from the Universidad Complutense of Madrid.

Karen Bamberg joined One World Montessori School in 1985. In addition to her Montessori Certification, she has an Early Childhood Education Certificate from West Valley College and a Child Development Site Supervisor Permit from the California Commission on Teacher Credentialing. Ms. Bamberg is pursuing her B.A. in Child Psychology at San Jose State University.

The Co-Directors are inspirational leaders, teachers and mentors who effect profound personal growth in their students.