Dr. Sun

Dr. Sun

Offers online services
Offers online services



My name is Yao, and I graduated in Tsinghua University with a Doctor degree, Materials Science and Engineering. I used to be a calculus assistant for the professor for college students.

I am now a full time Math tutor at home, teaching a variety level of Math, including but not limted to, Beast Academy, Pre-algebra, Algebra, Geometry, Probability, Calculus, AMC8/10/12, ACT/SAT, AP Math, etc. and hope that I can help you with any math problems.

I look forward to working with you together.




1 employee
1 year in business
Serves La Puente , CA
Offers online services

Payment methods

Venmo, Zelle


Type of math

General arithmetic, Pre-algebra, Algebra, Geometry, Trigonometry, Pre-calculus, Calculus, Statistics

Grade level

Elementary school, Middle school, High school, College / graduate school, Adult learner

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Frequently asked questions

I typically spend the early sessions developing an understanding of the student's strengths and weaknesses. As additional sessions transpire and it becomes clear what the needs of the student are, lessons become more tailored to addressing those needs, particularly in weaker areas.

I used to be an engineer with an extensive experience base in mathematics, physical sciences, and engineering subjects. My line of work requires using concepts in all of these areas which helps to minimize the difficulty of knowledge transfer during instruction sessions.

There is no standard pricing system I use. I prefer to start at a fair market base and adjust according to the difficulty of the instruction relative to other subjects I've tutored in the past. Prices are typically negotiable to within reasonable tolerances.

I started tutoring as an undergraduate at the engineering school of Tsinghua University. I found the tutoring experience very rewarding at the time because it helped me to understand my subjects with better clarity and also helped to approach problem solving with broader perspective (teaching helped to identify concepts that I needed deeper understanding of).

I have worked with high school students studying Geometry, Algebra, and Pre-Calculus; college students at the undergraduate and graduate level (control systems, general electrical engineering, upper, and lower level mathematics).

Most recently, a previous student of mine was accepted to USC and is now pursuing an engineering degree. I enjoyed witnessing her progression from a high schooler having difficulty in mathematics to a now savvy, technically inclined engineer in the making.

Ensure the goals of the teacher/instructor align very closely with your goals. Also, to get the most from the instruction/learning experience, ensure that you can identify your weaknesses and strengths and ask questions pertaining to maximizing your instruction in the areas you are weak in.

Think about how you would like to be assisted. In what capacity would you like the instruction to be delivered - walking you through problems as you work on them, reinforcing concepts that you have not completely grasped, or forging ahead to get you jump-started on future topics that you will encounter in your study?

Services offered