For Parents, For Children, For Families

School Leadership
Carolina Sam
Head of School, Mother of 3
International educational background:
10 years experience in Early Childhood Education
Former School Principal of Hong Kong’s renowned kindergarten (Victoria Shanghai Academy)
Curriculum Coordinator (International Baccalaureate Organization)
Certified PreK-G12 Teacher (BC College of Teachers in British Columbia, Canada)
Masters of Linguistics; Bachelor of Early Childhood Education; Bachelor of Arts; University of British Columbia, Canada

Carolina often identifies with ElastiGirl, often stretching her arms and legs whipping through tasks effectively with a big heart. With a passion for education, cheesecakes, drumming and Muay Thai, Carolina spends her weekends baking in the morning, jamming in the home-studio in the afternoon, and doing 100 left kicks at night. She is an unstoppable force of nature, and leads the Trehaus School team in pursuing the unimaginable – raising changemakers of the future.

Sheila Eng
Principal, Mother of 1
10 years experience in local Early Childhood Industry
Bachelor of Science (Early Childhood Educational Studies & Leadership), Wheelock College
Diploma in Early Childhood Education, Ngee Ann Polytechnic

Whether coaching beginner skiers on the bunny hill or guiding little ones to write their first word, Sheila believes there are no failures, only room for improvements. She is a dedicated school principal and also a certified ski instructor with NZSIA who wishes every day for cooler weather in sunny Singapore. Sheila’s ‘why not’ attitude inspires her to push boundaries in the early childhood industry with a team of like-minded educators, and nurture little changemakers.

Wang Chien-Yu
Curriculum Head, Mother of 2
Illinois Professional Educator License Early Childhood (Birth to Grade 2)
Endorsement in Early Childhood Special Education
Master of Education, Early Childhood Education, University of Illinois at Chicago
Master of Business Administration, National Taiwan University

Chien-Yu is a book addict and is now on her 1444th book. She is inspired by words of forward thinking educators and changemakers. When she’s not reading, she is busy finding ways to integrate everything she is inspired by into her life. She applies this passion and talent in planning the most meaningful curriculum for the children at Trehaus School.

Elaine Kim
Founder, Mother of 3
Bachelor of Medicine, Bachelor of Surgery (M.B.B.S), National University of Singapore

Elaine is a medical doctor, entrepreneur and traveller. She is driven by her faith and a desire to make the world a better place. Currently that means building Trehaus – to change the workplace for working parents like herself and her VC husband John, and making the much-needed changes in early education a reality. Her youngest son Nate is going to Trehaus School, so it has to be the best preschool ever.

Elizabeth Wu
Founder & School Director, Mother of 3
Post-Graduate Diploma in Education, National Institute of Education (Singapore)
Bachelor of Communication Studies, Wee Kim Wee School of Communication & Information, NTU
Certified Instructor for Parent Effectiveness Training, Gordon Training International

Elizabeth is an entrepreneur & educator by day, and parent-coach, writer and mom to her three big kids by night. She has stood in classrooms of all educational levels, from preschool and primary to secondary and university, and coaches, teaches and designs curriculum. She believes that children can be effectively raised to be responsible, caring and possessing empathy if we speak the language of acceptance to them.

Angela Rose Castaneda
Lead Teacher (English)
5 years teaching experience
BSc (Hons) Early Childhood Education, Wheelock College
Diploma in Early Childhood Education, Temasek Polytechnic

Angela describes herself as a mixture between Leslie Knope from Parks and Recreation, and Amy Santiago from Brooklyn-99 – with a caffeine addiction. Angela values the importance of expressing emotions in a healthy way, and seeing the potential of every individual regardless of their background, gender, who they are and where they come from. Her mission is to nurture every child who walks into her classroom to be citizens of the world. Driven by dedication, Angela sees herself stimulating children’s curiosity and creativity – and not ignore their innate desire to learn.

Syu Pei-Yi
Lead Teacher (Chinese) / Vice Principal in training
7 years teaching experience
Master’s Degree in Teaching Chinese as a Foreign Language, National Taiwan Normal University
Bachelor in Child Care and Education, Hungkuang University
Diploma in Child Care and Education

Living in a foreign country has pushed Pei-Yi to develop resilience and a confident outlook as she overcomes the difficulties and challenges that come from being away from home. Though acquiring and mastering a new language may be difficult, Pei-Yi believes that exposure to different languages is important so that children can expand their understanding of the world, as language is an intrinsic part of any culture. Her love for travel and cinema has broadened her perspectives, and has also given her the passion and desire to nurture young children so that they can grow to become global citizens.   

Sella Gunawan
Lead Teacher (English)
4 years teaching experience
Bachelor of Science (Early Childhood Educational Studies), Wheelock College
Diploma in Early Childhood Education, Ngee Ann Polytechnic
Mentoring Novice Teachers Trained by National Institute of Early Childhood Development (NIEC)

Sella is often dubbed as the child whisperer at home by her family. Being the youngest in a big family with five nieces and nephews (and counting!), she is a natural with kids during family gatherings. Sella is committed to making learning interesting, exciting and reflective for the children. Driven by her passion to teach, Sella is dedicated and determined to make her lessons in the classroom and outdoors challenging and interactive. During her free time, she enjoys watching Netflix or hitting the gym. 

Joy Chong Yan Huan
Lead Teacher (English)
3 years teaching experience
Bachelor of Science in Early Childhood Education, Monash University
Diploma in Early Childhood Education, SEED Institute

An avid nature and animal lover, Joy dreams of making the world a better place. She believes that education is the most powerful way to change the world and hopes to spread her love for life and learning to the little ones in her care. She values each child and their individual successes as they progress and learn at their own pace – choosing to celebrate every step they take and supporting them as they attain their potential. Joy imagines that the positive values and knowledge that children acquire will spread like little ripples to the ends of the world.

Keisha Garnell
Lead Teacher (English)
5 years teaching experience
Bachelor of Science in Early Childhood Education, Wheelock College
Diploma in Early Childhood Education & Leadership, Ngee Ann Polytechnic

An educator in the classroom and a fitness enthusiast at home, Keisha believes in the importance of creating a safe and secure environment for each child, to provide limitless opportunities for them to excel in. With her title of “Drama Queen” at home, Keisha enjoys dramatizing in front of the children to create more playful experiences. Her goal in the classroom is for each child to be happy, to have fun and to spark their love for learning.

Jefference Tay
Assistant Teacher
Master of Business Administration, Hong Kong University, Hong Kong
Diploma in Early Childhood Teaching, Ngee Ann Polytechnic, Singapore

Jefference has 20 years of working experience as a regional director in the printing and publishing industry under her belt but chose a complete career switch. She’s found her calling and passion in Early Childhood Education and believes that every child is unique and learns at his or her own pace. She wants to enable all children under her charge to learn in a warm and caring, fun and safe environment, and achieve their full potential through appropriate motivation and guidance

Fu Yun-Chia
Lead Teacher (Chinese)
2 years teaching experience
Bachelor of Business Administration Degree, Mingsin University of Science & Technology
Diploma in Early Childhood Education, KLC International Institute

Yun-Chia’s love for children has led her to become an Early Years educator and settling down here in Singapore. She strives to bring her creativity and passion into the classrooms and wants all the children in her charge to discover the Mandarin language in new and engaging ways. Outside of the classroom, Yun-Chia loves the great outdoors and is a nature-lover. She is often inspired to incorporate natural elements in creating resources and teaching Chinese.

Gao Xiaoyu
Associate Teacher (Chinese)
4 years teaching experience
Diploma in Preschool Education, Jianghan Art Vocational College

Xiaoyu enjoys sharing her love for music and performance with children. She believes that every child’s personality and creativity is something an educator needs to respect, and hopes to develop character and confidence for every young heart in her class. An avid learner herself, she has picked up the Korean language and studies it in her free time. Xiaoyu is also a music lover and plays the piano in her free time.

Our Education Advisory Board
Orly Friedman
Silicon Valley-based Education Expert

Orly is the Entrepreneur-in-Residence with Transcend, working to create a new model of school designed to support student agency. Previously, Orly was part of the founding team of Khan Lab School, serving as Head of Lower School and Assistant Head of School. Orly began her career in education as a Teach for America corps member in Washington, D.C. She spent five years teaching kindergarten - third grade with DCPS. Simultaneously, she created math content for the online learning platform LearnZillion. Orly has spoken on the topic of student agency at education gatherings around the globe including ASU-GSV, NewSchools Venture Fund Summit and the Teach for All Global Conference. She currently serves on the board of Yavneh Day School in Los Gatos, CA.

B.A. in Urban Studies, Yale University
M.A. in Early Childhood Education, George Mason University
M.B.A. , Stanford Graduate School of Business ​

Hannah Kim
Early Years Educator from Leading New York Institutions

Hannah Kim is a passionate New-York based educator, with a deep interest in incorporating social-emotional learning in early education. She was an early years head teacher at New York’s prestigious Chapin School, and is co-chair of the innovative preschool institution, Butler Street Co-op in Brooklyn. She has served as a member of the International Society for Technology in Education, Association for Supervision & Curriculum Development and New York State Association of Independent Schools (

M.A, Cognitive Studies in Education, Columbia University
B.SC, Policy & Management, Minor in Psychology, Carnegie Mellon University​

Louise Cimetta
Apple Education Consultant and Tech-in-Education Expert

Originally training as an early childhood teacher, Lou Cimetta taught across the early years and primary years before moving to leadership positions at school and system level in Australia. Lou is the founder of Blueprint Learning, an independent consultancy supporting the education sector. Lou is currently a leading resource and development executive at Apple supporting local, national and international educational institutions in utilising technology to maximise learning opportunities. As part of this role she opened up new markets, developed education content and designed powerful learning experiences for leaders and educators.

B. Ed (Early Childhood), Edith Cowan University, Australia

Christine Ma-Lau
Leader in Character Education

Christine Ma-Lau is the Founder and Principal of JEMS Learning House in Hong Kong, a leading educational institution that provides Character Education to children. She created the school out of her passion for educating young people in character and values, believing that, as Martin Luther King Jr. said, “Intelligence plus character – that is the goal of true education”. Christine is an Adjunct Professor at The Education University of Hong Kong. She is also the Founder and Chairperson of Character Education Foundation, and a Board Director of Sow Asia and a Founding Director of GeneroCity, both Hong Kong-based philanthropy funds that helps the underprivileged in the city.

M. Ed, University of Pennsylvania
B.A, Economics and Philosophy, London School of Economics.

Teodora Pavkovic

Positive Psychology & Emotional Intelligence Expert

Teodora is a psychologist, international speaker and parenting coach with over 10 years of international experience working with children and parents with emotional and behavioral difficulties, as well as adults with mood and anxiety problems. She is invited to speak, train and facilitate frequently at diverse venues. Her approach is rooted in emotional intelligence and positive psychology practices, as well as neuroscience research and mindfulness, and she has trained in the modalities of CBT, SFBT, hypnotherapy and strategic intervention coaching.

BSc Psychology, UMUC MSc Foundation of Clinical Psychology, Bangor University, UK

Ng Rong Xin

Leader in STEM Learning for Children

Rong Xin is co-founder and CEO of Explorer Junior, an edu-tech start-up that designs and creates STEAM (Science, Technology, Engineering, Art and Mathematics) & Design Thinking-based programs to nurture the curiosity of every child, from as young as 3 years old. Rong Xin also works with different research organizations to explore possible technology applications in education, including with New Zealand-based mixed reality startup QuiverVision to develop interactive and immersive AR (augmented reality) technology and content to enhance learning experience. Rong Xin was previously with the Singapore Ministry of Education (MOE), primarily in Education Management & Info-Systems.

Bachelor of Business Administration (BBA) Honours, National University of Singapore,
Elmo Chong

CEO and Founder of Sonically; CEO and Music Producer of Double Dragon Productions​

Elmo is CEO of Double Dragon Productions, as well as co-founder and CEO of, a music education startup. He is a grammy-nominated music producer who has produced platinum hits for Korean hip-hop artists such as: Rain, Bobby Kim, Drunken Tiger, Yoonmirae, YDG, Lexie, Double K, NCT 127. He was previously also a radio personality with TBS EFM MEDIA in Seoul Korea, where he co-Hosted the station’s #1 Rated Show and developed a popular music educational segment. He now takes his passion and creative talent towards bringing creativity and love for the arts and music into early education.

Dip, B.C.I.T (British Columbia Institute of Technology)