Faculty

Rance Kuwata

B.Ed. in Elementary Education

Rance Kuwata is a middle school math teacher at Thai-Chinese International School (TCIS) with over 10 years of international teaching experience. Originally from Hawaii, Rance has spent the past decade teaching in diverse classroom settings across Asia. His global teaching journey has helped him develop a culturally responsive, student-centered approach that prioritizes inclusivity, critical thinking, and real-world application.

Robert McGregor

Bachelor of Education (Primary) Master of Education (Mathematics)

Mr. Robert is in his twelfth year as an international school teacher. Prior to TCIS, Robert worked at an international school for two years in Chiang Mai. While his teaching has mainly been teaching mathematics in international schools in Thailand, he did teach for two years at an international school in Taiwan.
Before moving into the international teaching sphere, Robert started as a Primary School teacher in Australia. He then requalified to specialise in the teaching of Mathematics and taught this subject for two years in Australia before deciding to move to Thailand with his wife and two children.
Robert has always had a love of Mathematics and likes to encourage students to think the same way too. He uses different strategies to teach math problems and finds it so encouraging when students come up with different pathways to arrive at an answer. In his free time, Robert enjoys swimming, movies, hiking, and keeping up to date with current affairs.

Scott O’Neill

B.S. - Marketing and International Business - Penn State University M.Ed - Second Languages and Cultures Education - University of Minnesota

Mr. Scott has been teaching English, Spanish, Drama, and Robotics in Bangkok for 20 years. He has a Bachelor's Degree in Marketing and International Business (Penn State University), and a Master's Degree in Second Languages and Cultures Education (University of Minnesota). Beyond language teaching, he also coaches football (the soccer kind). For him, it has been a pleasure to put these acquired skills to use as he works with kids to learn and grow in an international school setting like TCIS.
Part of his studies was in Seville, Spain, which was his first major experience of living long-term outside the U.S. He then went on to work in the Peace Corps as a small business development volunteer in Paraguay (1997-99). It was after this important chapter in his life that he got back in touch with his mentors—teachers from his high school years—who guided him toward the Master's program that would prepare him for his career in education and his experience here at TCIS.

Sean Allen

Bachelors of Arts from Washington State University

Mr. Sean attended Washington State University and got his degree in English. He believes his passion for teaching really took off during his years at Washington State. He absolutely loved his professors and their outlook on teaching as a career. They pushed him to "grow up" and be himself inside of a classroom but still maintain that balance of enjoyment in a high school classroom.

Mr. Sean is excited to be a part of the TCIS "family" and looks forward to being with the students each and every day. He is currently in his sixth year at TCIS, and he is the Athletic Director. In his downtime, he enjoys camping, playing sports, and reading a good book!

Sean Peter Raymond

Bachelor of Arts in Mathematics and Secondary Math Education 5-12, Masters of Science in Secondary Math Education and Ph.D. in Math Education

Dr. Sean Raymond teaches Pre-Algebra, Pre-Calculus, Calculus and AP Calculus BC. Sean is an American teacher from the state of New York, where he was born in Syracuse. He attended SUNY Potsdam in Potsdam, NY, where he earned a B.A. in Mathematics and Secondary Math Education, SUNY at Buffalo State College in Buffalo, NY, where he earned an M.S.E.D in Secondary Math Education, and SUNY @ Buffalo, where he earned a Ph.D. in Math Education. In addition to Thailand, he has taught internationally in China.

Sean loves to use multiple strategies and resources to teach mathematics. He enjoys various types of problem solving methods to arrive at the solution and encourages his students to think outside the box. In his free time, he enjoys running, playing piano, movies and music!

Severino Sedeya

Bachelor of Science Honors degree Post Graduate Certificate in Education from National university of Science and Technology

Mr. Severino is an experienced teacher with an honors degree in Applied Physics and a Postgraduate Certificate in Education. He received qualifications from National University of Science and Technology as well as the University of South Africa. Mr. Severino has 15 years of experience teaching high school Physics and Mathematics both in public and private schools. Mr. Severino’s instructional approach and interactive teaching style includes problem solving sessions, hands-on lab activities coaching, individualized teaching of key concepts in small group settings, enabling students to apply Physics concepts to solve problems in real life, and building a solid foundation for further courses related to Physics and Mathematics. Mr. Severino has a strong interest in chess and is the advisor of the Chess Club, he is also the advisor of Smile Club.

Shanesz Jayasinghe

MA Education, University of Sunderland, UK PGCert Learning Technologies, University of Leicester, UK Post-Graduate Diploma in Education, University of Leicester, UK PGCert (Advanced), Education, University of Leicester, UK B (Com) Computer Studies (IT), Institute of Data Management, Sri Lanka/NCC, UK Teacher Profession Certification, Rajabhat Suan Dusit University, Thailand Lego EV3 Teacher Certification - Carnegie Mellon University, USA VEX V5 Teacher Certification - Carnegie Mellon University, USA

Ms. Shanesz has been an educator for the past 30 years working in several international educational institutes, including a post-graduate university.

She has a Masters degree in Education from the University of Sunderland, UK and specialized certifications in Learning Technologies, Information Technology & Robotics. She is passionate about teaching technology and believes in building strong relationships that tap into students' interests, and designing lessons that allow students to make connections with the curriculum and the real world.

Ms. Shanesz teaches secondary school Technology, Coding and Robotics.

Shaun Mefford

B.S. Hospitality Administration (2000), Alternative Teaching Certification (2008), M.Ed. International Teaching (2024)

Mr. Shaun is an academic advisor and college counselor. This is his 17th year in education and his ninth year at TCIS. He has filled the roles of a classroom teacher, Head of Math, Yearbook Coordinator, and is currently the AP Coordinator at TCIS.

Before moving abroad, he was a 5th-grade Math and Science teacher and grade-level Team Leader in Austin, TX. He enjoys helping students learn essential life skills, such as problem-solving, self-advocacy, responsibility, and independence.

Mr. Shaun loves playing games like Catan, Cribbage, Splendor, Gin, and Rummikub, working out, camping and trekking, and being creative through photography and skateboarding.

Shauna Le Conte

Bachelor’s Degree, University of Windsor Bachelor’s Degree in Education, University of Windsor. Midway through Master's in Mathematics for Teachers, University of Waterloo

Ms. Shauna Le Conte is in her 8th year of teaching in Thailand, previously in Chiang Mai for 2 years and at TCIS for 5 years. Ms. Shauna has taught a variety of subjects over the years, including AP and IBDP mathematics. This year, Shauna teaches AP Calculus AB, AP Computer Science, Coding, and Algebra 1. So far, Shauna has taken on a supportive role with the Robotics club with lead, Ms. Shanesz, and will supervise when the team travels for competitions. Hobbies include trying out new hot sauces (current favorite is “Firepower” brand) and riding on two wheels. Always keeping safety in mind! Shauna is from Ontario, Canada.

Sheeba Kundu

Master's in Science (Zoology), Kurukshetra University, India Bachelor's in Science (Biology) MD University, Rohtak, India Bachelor's in Education (Science Group) MD University, Rohtak, India; Bachelor's in Journalism & Mass Communication, Kurukshetra University, India

Ms. Sheeba Kundu, originally from India, is an experienced educator with over 16 years of teaching and leadership across IB, CBSE, and IGCSE curricula. She has served as IBDP Life Science Coordinator at Pathways World School, Gurgaon, leading the teaching of Biology, Environmental Systems & Societies, and Sports, Exercise & Health Science for grades 6–12.
She brings to TCIS her expertise in curriculum design, faculty mentoring, and fostering student success through inquiry-based and collaborative learning. This year, she will be teaching AP Biology, Environmental Science, and Anatomy & Physiology. Her teaching philosophy centers on inspiring curiosity, critical thinking, and a lifelong love for science.