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Management Team

Serene Jiratanan, School Director & Principal

Ms. Serene is the Principal and Upper Elementary Teacher.  She holds the AMI Montessori Teacher Diploma for 0-3, 3-6 and 6-12 years and has taught both the Casa and Elementary programs.  She holds a Bachelors degree in Economics from Cornell University, an MBA from MIT Sloan and Masters in Education from Pacific Oaks.  She is Thai / Singaporean and has worked in banking, consulting and high tech companies in Singapore, Hong Kong, New York and Beijing before settling down in Bangkok.

Julie Parraguirre, Casa Curriculum Director

Ms. Julie is the Curriculum Director for Casa and also teaches Casa.  She is from the US and holds the AMI Montessori Teacher Diploma for 3-6 years.  She has taught Montessori in Texas for 17 years.  Ms. Julie was a lawyer before embarking on a teaching career.  She also has a degree in Economics.

May Jiratanan, Finance Director

Khun May is responsible for all the Finance functions and Transportation for MABIS.  She has a Bachelors in Hotel Administration from Boston University and a Masters in Hospitality and Tourism  Management  from Rochester Institute of Technology.  She is currently pursuing a Master in Educational Administration with DeVry University.


Lilian Bryan, AMI Trainer & Consultant

Ms. Lilian Bryan is a renowned Montessori expert who travels the world to train teachers and to inspire the general public with her lectures on all subjects of the Montessori philosophy and its application in the classroom with children. Lilian is AMI certified for 0-3 years and 3-6 years and has been involved in Montessori as a teacher, AMI trainer and consultant for 55 years.  She studied under Mario Montessori and Dr. SilvanaMontanaro.

Charmaine Soh, Montessori Consultant

Charmaine Soh has extensive experience in early childhood education and school management and is one of Asia’s foremost experts on Montessori. She was past president of the Chinese Montessori International, founder of Greentree Montessori School in Singapore, and has shared her expertise through seminars, parenting programs and workshops throughout China, Southeast Asia, USA and Europe. Charmaine holds a Masters in Early Childhood Education from Pacific Oaks College USA, and teaching credentials from both AMI and AMS.