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I received my PhD in Physics and taught both university undergraduate, graduate courses in Physics, supervised thesis MS/PhD students, as lecturer and assistant professor (ref 1). The Physics subjects I taught use extensively geometry, trigonometry, algebra, calculus and differential equations (ref 2). I was also a Math and Physics teacher for algebra, trigonometry, geometry, and introduction to physics to a group of high/middle-school children at a local language and cultural education school. I had my background check on file with Kyrene School District when I was a badminton assistant coach (volunteer) in one of the well known high schools in the area.

I love to share with people the importance and correct use of Math and Physics for learning or real-life applications, My goal is to help people master Math and Physics from principle to applications as their needs require. I am fluent in English (professional) and Mandarin (native). From my 25+ years in universities and major companies in the industry (as engineer, software developer, team manager), I worked extensively, face-to-face, with people and groups of diversified culture and professional background in roles from teaching, training for 1:1 or large audience, customer support world wide, product demonstration and publication presentations at leading industrial conferences.

As well recognized by my students (5 star ratings on all sessions), I tailor my teaching to student's need, resources, priority on the concept or problem solving or both. I am detail minded, interactive, and flexible in working with students ranging from high/middle-school to college/university ages. I pay close attention to student's needs, learning progress, and make necessary adjustments to achieve best results.

Thank you for the potential opportunities to work with you and help you make significant improvements on learning the concept and achieving efficient and accurate real-life problem solving in the wonderful world of Math and Physics. I look forward to the rewarding experience of working with my student clients to achieve these goals: true understanding of the subject, able to articulate the concepts learned, efficient and accurate in problem solving, better grades and standing in the class, and/or better performance at work.

1. Subjects described in "Physics" e.g. by Young and Freeman and several others, "Classical Mechanics" by John Taylor, "Quantum Mechanics" by David Griffiths
2. E.g. in "Trigonometry" by Ron Larson, "Calculus" by Larson and Edwards, "Elementary Linear Algebra with Applications" by Kolman and Hill, "A First Course in Differential Equations" by Dennis Zill)

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Tim’s Qualifications

Education & Certification

Undergraduate Degree: Zhejiang University - Bachelor of Science, Physics

Graduate Degree: Univeristy of California, Los Angeles - PHD, Physics


Badminton, violin, photography, technical analysis.

Tutoring Subjects


Algebra 2

Algebra 3/4


Calculus 2

Calculus 3

College Algebra

College Physics

Differential Equations


High School Chemistry

High School Physics


Middle School Science

Multivariable Calculus

Physical Science





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