"A good teacher can inspire the heart, ignite the imagination, and instill a love of learning."

— Brad Henry

St. Mark's uses a team-teaching approach to the classroom  

4s and 5s Program: 

Claire Peterson, Director 


Ms. Claire received her Bachelor's Degree from California State University, Chico in Communications. She has completed her Early Childhood Education training at Diablo Valley College, and successfully completed the California C-Best exam. Claire was a teacher at TOPS for 11 years before becoming St. Mark's Director in 2014. She has been an active volunteer in childhood education at Wagner Ranch Elementary School and in local youth sports programs, mostly through Orinda Park Pool and Lamorinda Water Polo. She lives in Orinda with her husband, Ken, and her two children and two dogs.



Patricia Beltran


Ms. Patti has been teaching at St. Mark's since 2007. She studied Early Childhood Education Training at Diablo Valley College and lives in Moraga with her three children. She has been an active volunteer at Santa Maria Church, Del Rey Elementary, and Orinda Intermediate School. Her two youngest children attended St. Mark's, and she also served two years on the Parents' Board.


3s Program:

Amanda Lyon


Ms. Amanda was born and raised in California and lives in Pleasant Hill with her husband and three children. She spends her free time visiting with friends and family, cooking, and enjoying anything chocolate!

She has been in Early Childhood Education for five years, after studying at Diablo Valley College. She discovered her passion for teaching while volunteering in her son's preschool classroom.  She started as an outside assistant and moved her way up to a head teacher. She believes the role of an early childhood educator is to help children develop the tools they need to be successful both in their relationships with peers and in their life-long pursuit of knowledge.



Margaret Navarro

2s Program

Wendy Wellbaum Brooks


Ms. Wendy has been an early childhood educator in the Bay Area and Orange County for more than 20 years. She earned her master's degree in Early Childhood Education from Mills College in 1993 and completed an internship at Children's Hospital of Northern California. 

Teaching is her calling and her passion, and her favorite age group is toddlers! She loves doing messy art projects with kids, reading, singing!

Ms. Wendy is also a parent to two young adults: Olivia, 21, and Kyle, almost 23. She is an animal lover as well, and has two pet rats named Pocket and Gravel (they're sisters), and two cats.

In her spare time, she loves to bake and play with her girls! Ms. Wendy is excited to be at St. Mark's and looks forward to getting to know all of you!

Kathy Liggett