“My kid Andrew thoroughly enjoys Mr Chien’s classes, and learnt huge amounts during the past several years. Mr Chien is clear, organized, patient and thorough, the kid benefits a lot, scoring high in tests and competitions. Best teacher ever!” Andrew's parents

"Very helpful and worth it! The lessons are thorough and fun to learn from. " Linda

"Our daughter very much enjoyed Mr. Chien's classes and learned a lot. Totally recommend it." Linda's parents

"I'm currently taking multivariable calc and I just wanted to shoot you an email because I have to thank you for the entire Math Challengers experience. I feel like all of that is helping me so much right now. Even though the material I'm learning is different, the problem solving process is the same and it sort of feels like math challengers again, especially because we're encouraged to collaborate on our homework. Not to mention the memories and friendships from that. So yeah. Thanks." Jacqueline

"I would like to thank you for all your help throughout all the past years! Math has been much easier to understand with your help!! You have been an excellent tutor and have helped me tackle many challenges." Vanessa

“Our son Aiden loves Mr Chien’s clear and easy way of teaching, he learned so much from him and way more confident in school."

Aiden's parents