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Our Team

Our specially trained math instructors will teach your child how to understand math in an individual setting; our unique approach enables us to explain concepts really well and lend a helping hand to every student. Our tutors foster a caring, encouraging environment that helps children thrive and learn! Read below to learn more about our talented team:

Christianne S. Joseph ,Center Director 

Christianne was born and raised in Trinidad and Tobago. She recently moved to Hong Kong for the family. She had a Bachelor Degree in Physics with minors in Material Science and Environmental Physics at University of the West Indies.  She realized that children failed Math because they lacked confidence in their ability, so she entered teaching after University and taught children ages 11-19 years, Math and Physics for over 12 years. She has also taught adult remedial classes. She then pursued Civil and Coastal Engineering and earned her Bachelors and Masters at the University of the West Indies and worked as an Engineer before migrating. She however, never forgot her love for teaching  and has used remedial teaching experience at Mathnasium to build student confidence in Math.

Riaan Claase, Assisant Center Director

Riaan was a lecturer in Mechanical Engineering for 24 years in Durban, South Africa.  He moved to Hong Kong in 2008 and worked as a Math and English Teacher at different Learning Centres. He is also a part time Artist and Cartoonist and conducts handwriting analysis workshops in Hong Kong, having a keen interest in personality, expression and psychology.

He loves teaching kids and his mission is to make learning fun. He often uses his cartoons to bring smiles to his students faces.


Trisky Ying, Assistant Center Director

Trisky was born in HK and moved to Canada when she was in high school.  She grew to love mathematics while she studied in Canada. She completed a B.Sc. degree in Statistics at the University of Toronto.  

Trisky believes that mathematics is training in logical thinking and practice to be detail-oriented.  She understands the importance of grasping the fundamental concepts rather than just memorizing the rules.  "Practice makes perfect" is a motto that Trisky encourages students to do math exercises in enhancing their knowledge.  She enjoys seeing students grow confidence in mathematics and would like to share fun time with them at Mathnasium.

Charles Schmitt, Instuctor

Charles is an American who has lived in Hong Kong for over 25 years. He has a MBA in Finance from New York University. He was a financial analyst at the New York Stock Exchange. He also had a MS degree in Economics at Georgetown University, and a BA in English at the University of Missouri. 

Charles and his wife moved to Hong Kong shortly after they were married and their 3 children were born. He has been involved in finance and investment management in Hong Kong meanwhile he does a lot of volunteering work at church.

Being an instructor at Mathnasium offers him the opportunity to unleash his math skills and experiences of business in helping children grow in the community.


Michelle Wong, Instructor

Michelle was born and raised in Hong Kong. She completed a BSc degree in Computing and information Systems at the University of London. As a private tutor in the past two years, Michelle has the passion in teaching children, especially in math, helping them to understand this language of thoughts and building up their confidence in learning. She is delighted to be furthering her career by joining Mathnasium. in her leisure time, she likes cooking and reading.

Nelson Tai, Instructor 

Nelson has over 3 years experiences in education including Special Needs Education. He is experienced in teaching Olympic Math as well. His passion in teaching Math is the priority of his life because Math makes him feel better even when he is sick. Apart from Math, snooker and bowling are also big parts of his life. He plays Chinese chess as well during his free time.