When, after a career in traditional schools, I accepted the opportunity to lead the Montessori School of San Antonio, I had to challenge some of my long-held assumptions about education. One of those was the structure of the traditional school day, broken into short periods, dedicated to one subject at a time, and largely consumed by a lesson directed toward a class as a whole.

Time works differently in a Montessori school. Here we build the school schedule with long, uninterrupted work periods during which learning happens in depth and on broad arcs. Students do not proceed with a topic or subject until necessary mastery is accomplished to take on the next challenge. When a teacher gives a lesson to a Montessori student, she opens a pathway down which the student will travel independently and with persistence. It is not by accident that in many Montessori schools teachers are referred to as “guides.”


Our teachers come to MSSA from a wide variety of backgrounds and experiences. MSSA requires Montessori training through Upper Elementary; Middle School teachers are required to have subject-specific education, experience, and expertise. All are expected to embrace each child’s uniqueness and cultivate his or her natural desire to learn. The Montessori School of San Antonio is a joyful place to learn because it is a joyful place to teach.


Chuck Raymer
Head of School

“We have been at MSSA for six years and choose to stay at MSSA because it is the best environment for our children to explore their curiosity, reach their full potential, and master subjects at their own pace. Our children have thrived at MSSA and are thrilled to go to school every day.”




Dan Ahlstrom, Head of School
Emily Lund, Assistant Head of School
Theresa Powers, Upper Division Director
Maru Galarza, Director of Admission
Jocelyn Durand, Director of Communications
Jon Ollis, Director of Facilities
Ralph Huber, Business Manager
Laura Yarbrough, Business Office Assistant
Cynthia Mullett, Information Technology
Patty Escobedo, Childcare Coordinator
Kimberly Gomez, LVN
Francesca Creamer, Receptionist
Elizabeth Holland, Bookkeeper


Cheri Sebring, Lead Teacher
Judy Korge, Assistant Teacher
Janet Moro, Lead Teacher
Kristina Richards, Assistant Teacher
Angie Jones, Lead Teacher
Laura Darnell, Assistant Teacher
Libby Brocard, Lead Teacher
Angela Updike, Assistant Teacher
Sumi Chaudhuri, Lead Teacher
Ray Myles, Assistant Teacher


Page Judson, Lead Teacher
Donna Hengst, Assistant Teacher
Maria Flores, Lead Teacher
Lynn Ortiz, Assistant Teacher
Teresa Treat, Lead Teacher
Peter Sebring, Assistant Teacher
Pranita Patel, Lead Teacher
Jimena Hastings, Assistant Teacher

John Pettit, Lead Teacher
Kara Ralston, Assistant Teacher
Anne Shadle, Lead Teacher
Judi Abbott, Assistant Teacher
Cassandra Treviño, Lead Teacher
Shannon Pettit, Assistant Teacher


Shauna Cardenas, Teacher
Josh Duelm, Teacher
Julie Hartung, Teacher
Christine Noel, Teacher



Lisa Christal, Librarian
Becca Morgan, Music Teacher
Michelle Taylor, Music Teacher
Leticia Obregon, Athletic Director
Brenda Estrada, PE Teacher
Louis Alvarado, PE Teacher
Margo McCarthy, Art Teacher
Anabell Rosales, Spanish Teacher


Sylvia Flores, Primary Childcare Coordinator
TBD, Primary Childcare Assistant
Sandra Alvarado, Elementary Childcare Coordinator