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