Veteran math teacher with 17+ years of experience in tutoring and teaching precalculus, calculus, differential equations, linear algebra, and other advanced subjects in pure and applied math (such as partial differential equations and their numerical solutions). Have taught at top US schools (including Caltech) and local schools. Constantly rated by (US and HK) students as the best math teacher they've ever had. Proficient in English and Chinese (Mandarin and Cantonese). Located near Sha Tin. Focus on understanding of basic concepts and principles instead of formula memorizing. Good at explaining difficult subjects in intuitive ways.