Say hi to some of our key teachers & staff. Register for our Open House to meet more of our staff and teachers.

Kerry Winter


Kerry is from Melbourne, Australia, and graduated from Monash University with a Bachelor of Arts, and Master of Educational Leadership and Policy. With a background in International Baccalaureate as a teacher, program coordinator and workshop leader, she has a wealth experience teaching Music, English, and Japanese in both Australia and Japan.  Kerry loves jogging, puns, playing piano, loves to laugh, and seeing students discover their God-given potential.


Sarah Castle

Elementary Teacher

Sarah is from the United States of America. She received her Bachelor of Arts degree in elementary education and learning disabilities from Spring Arbor University and her Masters in Education in Literacy with a focus in English as a Second Language from Clemson University. She has experience working as an elementary school teacher of students with exceptionalities, as an English as a Second Language teacher, and as a literacy specialist. She loves being a part of her church family, doing anything outdoors, and drinking lots of coffee to keep up with her students. She is passionate about making sure every student’s gifts are developed and celebrated.


Rina Tamakoshi

Elementary Teacher

Rina is from Japan and is a graduate of the international school system, graduating from International Christian University with a Bachelor of Liberal Arts in Language Education and a Master of Arts in Education. She has experience teaching English to students of various ages, from young children to high school students. She loves eating donuts, going to a nice cafe, and spending time with her family and church family. It excites her whenever she sees someone discover their strengths, and she is passionate about letting students know that they are special and loved for who God created them to be.


Edwin Portillo

High School Teacher

Edwin is from El Salvador in Central America. He received his Teaching degree with focus on English Teaching Methodologies from the University of El Salvador and his TESOL certification from Arizona State University. He has experience as an English as a Foreign Language teacher at K-12 schools in both El Salvador and Japan. Edwin enjoys practicing outdoor sports and is a keen videography enthusiast. He also loves to get involved in his local church and community service. He is inspired  by seeing students fully develop their potential and taking their creativity and knowledge to the next level.