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AP CALCULUS AB & BC, SAT and ACT math tutor
Robert L.

961 hours tutoring

Your first lesson is backed by our Good Fit Guarantee

Hourly Rate: $25
Response time: 2 hours

About Robert


Bio

Over the last 5 years, I have been teaching mostly high school math--either at home or at a nearby SAT tutor school. I have taught geometry, algebra 1 & 2, trigonometry, precalculus, AP Calculus AB & BC, and the math portions of the SAT I and II & ACT. Most of my students are 7th to 12th graders. And I am a full time tutor.

I was an IT person and have experience as a programmer on HP mainframe. I taught trigonometry class as an instructor at a college in Taiwan, where I earned a...

Over the last 5 years, I have been teaching mostly high school math--either at home or at a nearby SAT tutor school. I have taught geometry, algebra 1 & 2, trigonometry, precalculus, AP Calculus AB & BC, and the math portions of the SAT I and II & ACT. Most of my students are 7th to 12th graders. And I am a full time tutor.

I was an IT person and have experience as a programmer on HP mainframe. I taught trigonometry class as an instructor at a college in Taiwan, where I earned a certificate.

Teaching is one of my passions. I like teaching math especially one to one tutoring, so I know my students well. Since math needs a lot of practicing, I encourage students to do more exercises at some fields, which are unfamiliar to them.

Some of my students have worked with me for over a year. I like to teach them how to use graphing calculators, which is a must for students planning to major in science or engineering. And some students like to learn how to write simply programs on calculators.

I teach Geometry, Algebra 1 & 2, Trigonometry, and AP Calculus for more than 4 years. So, I can explain some SAT and ACT questions in detail/fundamentals. I have an instructor certificate of Taiwan.

I like students who can finish some math exercises, which I assigned before sessions, so we can make progress more efficient. For ACT or SAT math, I prefer students to do some diagnostic tests in advance so we can concentrate on their mathematical weaknesses.


Education

Central State U. of Oklahoma
Computer Science
Central State U. of Oklahoma
MBA
  • Licensed teacher

Additional Languages

Mandarin Chinese

Policies


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Approved Subjects

Algebra 2

Algebra 2

I have taught one year for Integrated Math 2--a common core textbook from McGraw Hill. Two of my tutor students got A's and one got B. Right now, I am tutoring Integrated Mathematics 2, volume 1--a common core textbook from Houghton Mifflin Harcourt. Plus, I am tutoring Integrated Math 3 from McGraw Hill for 2 high school students now.
Calculus

Calculus

I have studied calculus in college. I have tutored many students in precalculus then AP Calculus AB & BC over 5 years since 2014. I majored in Computer Science in college of Oklahoma. Many of my students got 5 points easily in AP Calculus AB & BC. I can interpret in detail concepts because I also teach all high school math and SAT Subject Test Level 2.
Geometry

Geometry

I have been teaching geometry for four years.
GRE

GRE

I can teach GRE Quantitative Reasoning only but not verbal part. Most of those quantitative questions need basic concepts of Algebra and Geometry. I have taught those subjects for more than 8 years. I also teach Calculus.
SAT Math

SAT Math

I have been teaching preparation for the PSAT, SAT, SAT Subject Test Level 2 and ACT at a private school in Chino Hills and at my home for the last five years. During this time I have tutored and taught classes in Algebra 1 & 2, Geometry, PreCalculus, and Calculus AB & BC. I have a firm understanding of these subjects and can give clear instruction in depth. I feel I can guide students to a sound footing in these subjects, so that they should do well in furtherance of their goals.
ACT Math
Algebra 1
Precalculus
Robert L.'s Photo

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Response time: 2 hours

Ratings and Reviews


Rating

5.0 (453 ratings)
5 star
(452)
4 star
(1)
3 star
(0)
2 star
(0)
1 star
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Reviews

Explains very clearly and is very helpful!!

Had one lesson for SAT Math tutoring and was feeling good about the topics I had trouble with in just one hour! He goes over questions in depth and makes sure you understand before moving onto the next one. He also gave me a bunch of great tips for the SAT and ways to cut back on time. Would recommend to anybody having trouble with the math section of the SAT. Thank you Robert!

Gabriella, 1 lesson with Robert

Knowledgable, patient, and supportive teacher

I’ve had an outstanding experience with my Calculus tutor. Mr. Robert is exceptionally knowledgeable in mathematics and possesses remarkable patience, as well as a genuine and friendly teaching approach. Starting with AP Calculus AB and BC, his explanations clarified complex topics and helped me develop a solid foundation. I earned A grades in both AP courses, and he has continued to guide me as I tackle college math. He consistently breaks down complex problems, provides clear step-by-step reasoning, and offers practice that targets my weaknesses without being overwhelming. If you’re looking for a tutor who is both a math expert and a supportive teacher, Mr. Robert is an excellent choice.

Christina, 179 lessons with Robert

Great math tutor ,very patient !

We are so lucky to have found this math tutor Mr. Lee for my daughter. He is very patient. He tries to find my daughter's weak areas in math and strengthen them during the teaching process. This is exactly what I was looking for. My daughter also loves his class. If you are looking for a math tutor , I highly recommend him and I guarantee you will not be disappointed.

Meihong, 15 lessons with Robert

Excellent and knowledgeable tutor

Robert is helping my son with AP Calculus BC. He is excellent in explaining things clearly with tips and strategies. He also uses lots of old AP question papers to help prepare for the AP test. He's truly a great tutor, I highly recommend him!

Joey, 20 lessons with Robert

Excellent tutor

Robert clarified my understanding very well by going step by step and explaining the problems in depth. He is very understanding and I feel very comfortable asking him questions. He is the best tutor.

Mehul, 29 lessons with Robert

Excellent tutor and very knowledgeable!

Robert did SAT Math lesson for my son. My son was very happy with his lesson. He is a patient and knowledgeable teacher. My son said that he explained all the problems very patiently and gave many similar examples and made sure he got it. He is no doubt an excellent teacher!

Debjani, 9 lessons with Robert

Excellent tutor

My daughter really enjoyed her tutoring session. She wanted to highlight Robert’s patience and positive reinforcement, which gave her the confidence she needed for her test.

Tee, 3 lessons with Robert

Patient and Knowledgeable Tutor

He is a patient, knowledgeable tutor. He prepares well ahead for the class so it’s easy for the kids to focus!

Niranjana, 1 lesson with Robert

Knowledgeable, explains concepts well, great teacher

Knowledgeable, explains concepts well, great teacher, patient, makes difference way beyond of what we expected for a tutor. Very-well prepared. Asks questions ahead of time. Makes himself available to work with our schedule.

Matt, 167 lessons with Robert

Explains the concepts in detail

Robert has been tutoring my son who is in High School for his PSAT test. It has been going on very well and my son is looking forward for his class every week. My son solves the PSAT question papers and he discusses with Robert the questions that answered incorrect or the ones that he don't know how to solve them. Robert patiently explains the concepts in such a through details that even the difficult concepts can be easily understood. He also takes extra effort in assigning home work assignments (on Khan Academy) for my son's practice on those math topics that needs more attention. We are planning to continue with him for some more time until my son feels confident in attempting PSAT exam and score high marks.

Mohammad, 14 lessons with Robert
Hourly Rate: $25
Response time: 2 hours
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