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Top-Rated Math Tutor | Calculus, AMC Competitions, SAT/ACT | 15+ Year
Thomas K.

5.0 (679 ratings)

3,146 hours tutoring

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About Thomas

Bio

I hold a Master's in Education and a BA in Applied Mathematics from the University of California, Berkeley, giving me a deep understanding of complex concepts and their real-world applications. I am also a Certified Math Teacher.
Teaching & Tutoring Experience:
KIPP King High: 11th-grade math teacher; Summit Charter School: Classroom Math Teacher
AOPS: Math Competition Coach and Instructor for AMC (Competition math), test prep.
ACE: Served eight years as a Math Teacher and Director,...

I hold a Master's in Education and a BA in Applied Mathematics from the University of California, Berkeley, giving me a deep understanding of complex concepts and their real-world applications. I am also a Certified Math Teacher.
Teaching & Tutoring Experience:
KIPP King High: 11th-grade math teacher; Summit Charter School: Classroom Math Teacher
AOPS: Math Competition Coach and Instructor for AMC (Competition math), test prep.
ACE: Served eight years as a Math Teacher and Director, guiding students through Algebra, Precalculus, AP Calculus AB/BC (AP Calc), and SAT/ACT test prep.
CL Academy: Algebra, Precalculus, AP Calculus AB/BC, AMC (Competition math), and SAT/ACT, test prep/ exam prep.
C2 Education: online and in-person instruction in Precalculus, AP Calculus AB/BC, Multivariable Calculus, SAT/ACT

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Education

University of California Berkeley
Applied Mathematics
Alliance International University
Masters
  • Licensed teacher

Additional Languages

Korean

Policies

  • Hourly Rate: $150
  • Rate details: Group Sessions: For group sessions, an additional $20 per student. Notification Requirement: Request less than 24 hours before the lesson will charge the full lesson rate.
  • Lesson cancellation: 24 hours notice required

  • Background check passed on 5/20/2024

  • Your first lesson is backed by our Good Fit Guarantee

Schedule

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Approved Subjects

ACT Math

ACT Math

I have taught the ACT Math for over ten years. I took a ACT Math test and received 36. I have unique materials for ACT Math prep and specific strategies for various students. I also worked for companies that provided ACT Math materials.
Algebra 1

Algebra 1

I am a math teacher at a public School with over ten years of experience teaching Algebra 1 in both school settings and academic tutoring programs. My deep understanding of the subject allows me to quickly identify and address common student misconceptions. I provide clear explanations, targeted practice, and personalized strategies to help students master algebraic concepts and build confidence in problem-solving.
Algebra 2

Algebra 2

I am a math teacher at a public School with over a decade of experience teaching and tutoring Algebra 2 in schools and academic programs. I have a strong grasp of the curriculum and can pinpoint and address common areas where students struggle, such as functions, quadratic equations, and advanced algebraic concepts. My lessons are designed to strengthen understanding, improve problem-solving skills, and prepare students for higher-level math courses.
AMC (Competition math)

AMC (Competition math)

I am a math coach with over a decade of experience teaching competitive math, specializing in AMC 8, AMC 10, AMC 12, and AIME test prep. I currently coach students at Art of Problem Solving (AOPS) for AMC 10 & 12. Many of my students have qualified for AIME and achieved excellent results in AMC competitions and other math contests. I focus on building deep problem-solving skills, strategic thinking, and contest readiness for students aiming to excel in math competitions.
Calculus

Calculus

I am a certified math teacher with 15+ years of experience teaching and tutoring Calculus, including AP Calculus AB, AP Calculus BC, and college-level Calculus I and II. I help students master limits, derivatives, integrals, applications, differential equations, series, polar/parametric topics, and AP free-response strategies. My lessons focus on building conceptual understanding, improving problem-solving accuracy, and preparing students for quizzes, exams, and the AP Calculus exam. I hold a degree in Applied Mathematics from UC Berkeley and a Master’s in Education.
Common Core

Common Core

With over a decade of experience teaching mathematics, I have guided students from Prealgebra to Calculus, fostering their understanding and appreciation of the subject. I currently work as an 8th grade math teacher at a middle school, where I have honed my ability to make complex concepts accessible to younger learners. Additionally, I have worked as a math tutor at an educational company, providing personalized instruction to help students succeed. I am also in the process of obtaining my single subject teaching credential, further solidifying my expertise and commitment to the field.
Elementary Math

Elementary Math

I am a certified middle school math teacher with extensive experience teaching middle school math and tutoring elementary students. My approach focuses on building a solid understanding of core concepts while fostering problem-solving skills and confidence. I create engaging lessons that help students develop a strong foundation and, most importantly, a love for math.
Geometry

Geometry

I am a certified math teacher with more than 15 years of experience teaching and tutoring Geometry at the middle and high school levels. I hold a B.A. in Applied Mathematics from UC Berkeley and a Master’s in Education. I help students master geometric proofs, definitions, theorems, and problem-solving strategies while developing the logical reasoning needed for school courses, standardized tests, and math competitions.
Precalculus

Precalculus

I am a math teacher at a public School with over a decade of experience teaching and tutoring Precalculus in both school and academic program settings. I have a strong command of topics such as functions, trigonometry, analytic geometry, and limits, and I know how to address the most common challenges students face. My approach focuses on building a deep conceptual understanding while developing problem-solving strategies that prepare students for calculus and higher-level mathematics.
Probability

Probability

I am a certified math teacher with more than 15 years of experience teaching and tutoring probability, statistics, and related mathematics at the high school and college levels. I earned a B.A. in Applied Mathematics from UC Berkeley and a Master’s in Education. I have passed SOA Exam P, demonstrating a strong command of probability concepts and their applications, and I help students build both conceptual understanding and confident problem-solving skills.
SAT Math

SAT Math

I’ve taught SAT Math for over ten years and scored a perfect 800 on the Digital SAT. I offer personalized strategies tailored to each student’s needs, whether you're aiming for a top score or building foundational skills. My lessons include unique prep materials I’ve developed, along with resources from top test prep companies I’ve worked with. Let’s work together to raise your score with focused, effective practice.
Statistics

Statistics

I am a certified high school math teacher with over 15 years of tutoring experience, including teaching high school mathematics, college statistics, and AP Statistics exam preparation. I hold a B.A. in Applied Mathematics from UC Berkeley and a Master’s in Education. I earned a 5 on the AP Statistics exam and passed actuarial Exam P (Probability). My academic background and teaching experience allow me to explain statistics clearly and help students build conceptual understanding and strong problem-solving skills.
Linear Algebra
Prealgebra
Trigonometry

Examples of Expertise

Thomas has provided examples of their subject expertise by answering 60 questions submitted by students on Wyzant’s Ask an Expert.

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Ratings and Reviews

Rating

5.0 (679 ratings)
5 star
(677)
4 star
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3 star
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1 star
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Reviews

Dedicated and Highly Effective Math Tutor

Thomas is an outstanding math tutor who is knowledgeable, patient, and highly focused on helping his students succeed. He quickly identifies each student's weak areas and explains concepts in a way that is easy to understand. He provides plenty of targeted practice problems to reinforce learning and build confidence. Thanks to his structured approach and personalized guidance, students feel well prepared for their class tests and AP exams. Thomas genuinely cares about his students' progress and goes the extra mile to ensure they understand the material. I highly recommend him to anyone looking for an effective and dedicated math tutor.

Jayaradha, 67 lessons with Thomas

Great Math Tutor

My son has a wonderful experience working with Thomas over the past five months to help him prepare for the AMC math competition. Thomas is knowledgeable, patient, and excellent at explaining challenging mathematical concepts in a clear and effective way. We appreciate thoughtful feedback after every lesson on our son's progress and the plan for upcoming sessions. Highly recommend him to any student looking for an exceptional tutor.

Holly, 29 lessons with Thomas

Effective tutor for Great Results

Thomas is very knowledgeable. He knows how to find the weak areas for the student and then work on them effectively. My daughter's SAT Math score increased very quickly by targeting frequent mistakes and mastering Desmos. Last SAT, she got 790 score for SAT Math. Thank you so much Thomas.

Weng Heng, 10 lessons with Thomas

Exceptional math tutor. Art of Problem Solving (AoPS) approach. Extensive background coaching for math competitions.

Thomas is an exceptional math tutor. I give him my highest recommendation. I needed a math tutor for my 7th grade son, since he was not being challenged enough in school and to prepare him for the AMC math competitions. I chose Thomas because of his extensive math and teaching background. I especially love that he uses the Art of Problem Solving (AoPS) approach in solving math problems. The curriculum he uses ensures that your child will be challenged regardless of prior experience level. Thomas is very efficient and patient. He is able to teach my son at the pace he needs for each topic. For topics my son finds more challenging, Thomas takes the time necessary for him to understand and offers additional review problems.

Rick, 28 lessons with Thomas

Exceptional math tutor. Art of Problem Solving (AoPS) approach. Extensive background coaching for math competitions.

Thomas is an exceptional math tutor. I give him my highest recommendation. I needed a math tutor for my 7th grade son, since he was not being challenged enough in school and to prepare him for the AMC math competitions. I chose Thomas because of his extensive math and teaching background. I especially love that he uses the Art of Problem Solving (AoPS) approach in solving math problems. The curriculum he uses ensures that your child will be challenged regardless of prior experience level. Thomas is very efficient and patient. He is able to teach my son at the pace he needs for each topic. For topics my son finds more challenging, Thomas takes the time necessary for him to understand and offers additional review problems.

Rick, 28 lessons with Thomas

Private math tutor for advanced 8th grade

Thomas has been an absolutely wonderful tutor to my eight grader. She is in AP math and loves her sessions with Thomas. He simplifies difficult concepts and encourages her. She feels become significantly more confident working with him, and they’re even preparing for a math competition. he gets five stars for me and from my daughter

Alice, 16 lessons with Thomas

Knowledgable and patient AMC tutor

Thomas is a knowledgeable and patient math tutor. He quickly identifies areas where the student needs improvement and develops a clear, targeted plan to address those gaps. Highly recommended!

Chenguang, 1 lesson with Thomas

great teacher very patient

Great teacher and very patient I love how he made me feel welcomed with open arms without being judged. I will definitely be coming back for more lessons.

Henry, 1 lesson with Thomas

Knowlegebla Tutor

Thomas has a unique teaching style that has made a huge difference for my son. Instead of simply giving answers, he constantly asks, “Why?” and encourages students to explain their thinking. This approach guides children to think deeply and develop true problem-solving skills. This has been especially valuable for my son. His foundation is relatively weak, and when he encounters challenging problems, he tends to give up instead of working through them step by step. Thomas patiently leads him to think logically, one step at a time, helping him build confidence and develop the habit of deep thinking rather than looking for quick answers. Another thing I really appreciate is the pace of his lessons. His classes move quickly and keep students fully engaged. There is no time for distractions or daydreaming, which has helped my son develop the ability to stay highly focused for an entire hour. That level of concentration is something we had struggled to build before. I truly appreciate Thomas’s dedication and teaching methods. His lessons have not only improved my son’s academic skills but have also helped him develop stronger thinking habits, better focus, and greater confidence when facing difficult problems.

YUN, 11 lessons with Thomas

Deep Knowledge of the subject

Thomas has deep knowledge of the subject. He helped my son with both AP Calc and the SAT. His response time is fast. He has instant bookings available for last minute lessons and values time. He genuinely cares that his student does well! Thank you Thomas!

Leena, 28 lessons with Thomas