Thomas K. Wyzant
Hayward, CA · Teaches online · $120/hr · ★ 5.0 (54 reviews)
Subjects: SAT Math,, ACT Math, ACT Math, Algebra 1, Algebra 2, AMC (Competition math), Calculus, Common Core, Elementary Math, Geometry, Precalculus, Probability, SAT Math
Testimonials (54)
“Thomas K. has been an amazing AP Calculus AB tutor. He helped me with all the major topics in my course, including limits, derivatives, the Chain Rule, logarithmic and exponential functions, related rates, and applications of derivatives. Before working with him, many of these topics felt confusing and overwhelming to me, but Thomas explains everything in a clear way that makes even the hardest problems feel manageable. What I appreciate most about Thomas is his patience and how he makes sure I truly understand the concepts instead of just memorizing formulas. He always checks my work, explains mistakes in a calm and encouraging way, and shows me how to approach problems logically. His teaching style helped me build confidence in solving AP-style questions on my own. Thanks to Thomas, my understanding of calculus has improved a lot, and I feel much more prepared for my AP Calculus AB class tests and the AP exam. I’m now able to solve problems faster, avoid common mistakes, and actually enjoy learning calculus. I highly recommend Thomas K. to anyone looking for a supportive, knowledgeable, and highly effective math tutor.”
— Neil, 40 lessons with Thomas
“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, 36 lessons with Thomas
“Mr. Thomas is very good at understanding what a student needs. From my first lesson, he was able to grasp my understanding of calculus and from there he immediately provided homework, practice material, and an overall study schedule to help me achieve a 5 on the AP exam.”
— Alvy, 41 lessons with Thomas
“We are very grateful to Thomas for his outstanding work with my son. Thomas has an exceptional ability to explain complex, advanced mathematics in a clear and structured way. Thanks to his guidance, my son has not only mastered challenging topics like quadratics and conic sections from the advanced AoPS curriculum but has also developed a genuine deep understanding of problem-solving methods. Thomas is a highly professional, dedicated, and motivating tutor who knows exactly how to prepare a student for competitive mathematics like the AMC 10 and 12. We highly recommend his classes to anyone looking for top-tier math coaching!”
— Polina, 8 lessons with Thomas
“We hired Thomas to help my daughter with AP Calculus and AMC10 prep, and the results have been fantastic. He brings a highly structured approach to his lessons and isn't afraid to set a high standard for his students. My daughter found his explanations very easy to understand and his techniques simple to follow. Working with him gave her a major boost in confidence with her Calculus material. He is an excellent tutor for students who want to excel and truly understand math.”
— Eddie, 21 lessons with Thomas
“Thomas has a very well structured program for teaching SAT math. I could feel myself improve in every concept and even though it was a lot of work he is helping me be successful.”
— Sungsook, 13 lessons with Thomas
“My son is usually very selective about his teachers, but he genuinely enjoys learning from Mr.Kim. He has been helping him prepare for an Algebra II test, and my son says he explains concepts clearly and makes difficult topics much easier to understand. We are very pleased with the experience so far.”
— Monica, 9 lessons with Thomas
“Thomas has been a great SAT math tutor so far. We recently started working with him, but we are already happy with his teaching style and the support he provides. He explains concepts clearly, makes the sessions comfortable, and we are happy to continue with him.”
— Elcin, 9 lessons with Thomas
“Ethan has been an outstanding instructor for our child. He is knowledgeable, patient, and highly effective at keeping students engaged and motivated. One of Ethan’s greatest strengths is his ability to explain challenging concepts in a clear and approachable way. He encourages students to think independently, ask questions, and develop confidence in their own problem-solving abilities rather than simply providing answers. He creates a positive and supportive learning environment where students feel comfortable taking on new challenges. Our child has not only improved academically but has also become more confident and enthusiastic about learning. Ethan is professional, reliable, and genuinely invested in the success of his students. We are very grateful for his dedication and highly recommend him to any family looking for an exceptional tutor and mentor.”
— See young, 4 lessons with Thomas
“Thomas is a gem. He helped me prepare for a project. He is direct and has clear expectations that define how to learn and study. I am grateful to work with him. My only fear is that he will become so busy that he doesn’t have time for my next project!”
— Selena, 21 lessons with Thomas
“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, 2 lessons with Thomas
“Thomas has been a wonderful help to my son who is a junior taking AB calculus AP. My son finds him incredibly helpful, as Thomas has high expectations for his students. expects them to do work in Advance and makes sure they understand the concepts by testing them with additional questions. We are very grateful!”
— Corita, 34 lessons with Thomas
“This tutor is really good at explaining a lot of difficult concepts in an easy way. He was also really good at catching my mistakes, and as a result my grade went from a C+ to an A! I am super grateful for this tutor and I highly recommend him for anyone looking for a calculus BC tutor.”
— Emma, 37 lessons with Thomas
“Tomas is an incredible mathematician and calculus teacher, and I have seen tremendous improvement since I started working with him. Every class is worth every minute. He always comes prepared and makes difficult concepts much easier to understand, especially FRQs, which I used to struggle with the most. One thing I really appreciate is that he sends practice tests in advance so we can carefully review the questions I missed together. His explanations are clear, patient, and extremely effective. Because of his teaching style, I feel confident and prepared for my AP Calculus exam. I highly recommend Tomas to anyone looking for a knowledgeable, supportive, and dedicated teacher.”
— Karine, 21 lessons with Thomas
“My daughter says he is the only one who has ever been able to help her understand desmos. She is feeling confident about taking the ACT. We are excited to see how she does on the math section this time.”
— Ines, 7 lessons with Thomas
“My daughter's teacher was let go and since, she's had numerous subs who aren't helping and the class is learning nothing. As SATs and district assessments loom, we needed to get her back on track. This helped and now we can maintain going forward, better. Thank you!”
— Heidi, 1 lesson with Thomas
“Very knowledgeable of all necessary topics in math for the ACT. He possesses a deep understanding of the concepts, rather than simply surface level awareness, and uses it to help my daughter learn concepts. He doesn't just teach to help with a specific problem, but to ensure understanding of the concept itself. Would recommend!”
— Ying, 2 lessons with Thomas
“Thomas is an exceptionally proficient tutor of AP Calculus BC tutor for my son. We have tried multiple mathematics tutors through Wyzant, and we have no doubt Thomas is the best tutor. His expertise spans a wide range of advanced mathematical topics, as evidenced by his teaching credentials at Art of Problem Solving (AOPS), one of the most rigorous mathematics programs that my son has attended for a few years. Thomas is highly effective at rapidly diagnosing areas where my son has knowledge gaps and providing targeted instruction to close those gaps. Thomas systematically breaks down complex concepts and provides expert instruction to ensure the student to master the concept comprehensively. My son consistently expresses how happy he is with Thomas's tutoring, and as a parent, I am extremely appreciative of Thomas for my son's top academic records in AP Calculus BC class.”
— Rachael, 42 lessons with Thomas
“Thomas has been working with my middle school children for a few months. He is a very knowledgeable and organized math tutor, and is especially good about challenging them with deeper thinking math problems. He uses the time very efficiently and also always updates me about what they worked on after each session, which is always appreciated!”
— Susan, 37 lessons with Thomas
“Thomas is an excellent teacher who is obviously qualified to teach college-level mathematics, yet he can explain mathematics concepts in a way that an average high school student can easily understand. My kid has been struggling in calculus, but Thomas is able to break down confusing concepts clearly and effectively, making the material much easier to grasp.”
— May, 2 lessons with Thomas
“Thomas is clear and concise with his explanations and is patient when answering any follow-up questions. For competition math, he provides numerous solutions to different problems depending on what knowledge you already have. After every session, Thomas identifies any weak areas and lets you know what to focus on next. I strongly recommend him if you're looking to improve your competition math or general math skills!”
— Krystal, 10 lessons with Thomas
“Thomas was very helpful by giving my son many practice questions ahead of time so when they met, my son was able to ask him questions. Also he made my son comfortable by making some jokes when my son made silly mistakes”
— Thanh, 8 lessons with Thomas
“Thomas has been tutoring my son in math for the SAT, and my son has been grasping concepts he definitely needed help with. He really likes the way Thomas explains and provides instruction. With the SAT date approaching, my son has worked with Thomas for a short period of time, but Thomas has been very accommodating and has provided as much help as possible.”
— Brenda, 3 lessons with Thomas
“Thomas is a great tutor for students who want to be challenged and supported in their mathematical journey. There is a clear focus on fostering a deep understanding of concepts. He is truly committed to the student's success. What stands out most is how he encourages critical thinking and problem-solving. Students are pushed out of their comfort zones in a supportive way, helping them develop skills that will benefit them far beyond the classroom. My child enjoys his classes and feels quite engaged through out the session. Highly recommend his tutoring!”
— Meena, 27 lessons with Thomas
“Thomas is very knowledgeable and patient tutor. He explained and provided the detail proposal on how to rebuild the math foundation for the student to have long term strategy to achieve higher core on AMC competition. He walked through the math concept and gave hint instead of directly show the solution during class to let student to think independently and learn from their mistakes.”
— Xiaojun, 43 lessons with Thomas
“We had an excellent experience working with Thomas K. My son started lessons to prepare for a math competition, and in a short period of time, we saw consistent improvement in both his understanding and his test scores. Thomas is patient and knows how to explain challenging concepts clearly. His guidance not only helped raise my son’s scores but also built his confidence and problem-solving skills. We’re very grateful for his support and highly recommend him to any student looking to excel in math competitions.”
— Dorothy, 12 lessons with Thomas
“My daughter really likes the AP Calc BC tutoring sessions with Thomas. She said he's very knowledgeable about the material and knows how to gauge her understanding of the content to adjust his pace. He explains complex logic well and she feels confident about her progress and her ability to handle upcoming tests thanks to Thomas' help!”
— J, 10 lessons with Thomas
“Thomas has been tutoring my child for AMC 10 preparation, and we are very happy with his approach. He ensures essential concepts are well understood before moving on to past exam problems, which helps build confidence. His explanations are clear and easy to follow, keeping my child engaged. After each session, Thomas provides detailed notes summarizing what was covered, including areas to focus on next and strategies for improvement. Communication is always prompt and helpful, whether it’s answering questions or adjusting schedules. We truly appreciate his guidance and highly recommend him!”
— Jaehee, 20 lessons with Thomas
“Thomas is a highly experienced teacher. My child has taken about nine AMC lessons with him, and he explains concepts very clearly while demonstrating strong subject knowledge. He is patient, professional, and flexible with occasional schedule changes. I would strongly recommend Thomas to anyone seeking help with math!”
— Ashley, 31 lessons with Thomas
“My high school son has been working with Thomas to learn Geometry, and has found him highly effective at explaining concepts. My son has been enjoying their sessions, and has remarked that they are able to cover a lot of material quickly. Since Thomas is also a classroom teacher, he is thoughtful about what topics are important to learn in sequence, as well as what material is important for the SAT. Big thumbs up!”
— Caroline, 36 lessons with Thomas
“Thomas has been tutoring my son for a little over a month. He is patient, explains concepts clearly, and provides structured guidance. While it’s still early, I can see he is helping my son build a stronger foundation in math, and I believe his support will lead to steady progress.”
— Li, 39 lessons with Thomas
“Thomas is an amazing tutor for competition math; he is currently helping my son with AMC10 and AIME preparation this year. He definitely knows his stuff - he is able to identify and close knowledge/problem type gaps effectively. He is very thorough and efficient in the way he breaks down complex problems. My son is very happy to have Thomas in his corner! As a parent, I am more than happy to have found Thomas on this platform. I love reading his lesson summary as he lets me know *exactly* what they had worked on during a class session. My communications with Thomas have always been great - He is prompt, kind and respectful. We appreciate his flexibility and accommodating us in occasional schedule changes, which helps ease things up as we juggle our busy schedules. Thank you Thomas!”
— Christy, 34 lessons with Thomas
“Thomas is an excellent tutor who has always accomdated my daugher in last minute test prep when she gets stuck. We appreciate his patience and ability to break down tough concepts in an easy to understand manner always making sure she understands before going to the next step!”
— Lisa , 4 lessons with Thomas
“Our daughter worked with Thomas through the summer to strengthen her understanding and progress ahead of current learning. Thomas was flexible with covering many topics, patient with explaining topics in different ways and until our daughter understood the concept. She says he is the best math teacher she has had. They covered algebra, geometry and some pre calculus.”
— Howard, 29 lessons with Thomas
“Thomas is very knowledgeable in elementary and secondary math teaching. He explained the problems explicitly to Lucas. And make sure he understands the content well.”
— Mei, 22 lessons with Thomas
“My son works with Thomas on a regular basis for AMC competition prep. He enjoys working with Thomas and appreciate his clear communication style and how well he explains the concepts. Thomas knows the materials extremely well and are able to let us know where my son stands in mastering the topics. We appreciate how candid he is and how much he cares about the overall success of the student. We would recommend him to anyone without reservation!”
— Jami, 14 lessons with Thomas
“Great teacher, helpful, talented, will continue to the lessons, glad we found him, sure he will help to improve sat math grade”
— Bulent, 17 lessons with Thomas
“Thomas has been an excellent tutor for my son, who is currently studying Pre-Calculus with him. My son was looking to build a strong foundation and gain confidence in his understanding of the subject, and Thomas has been instrumental in helping him achieve both—and more. What sets Thomas apart is his dedication and ability to connect with students. He encourages my son to explore multiple ways of solving problems, which not only strengthens his problem-solving skills but also deepens his conceptual understanding. Thomas is attentive, thoughtful, and truly knows how to bring out the best in his students. We’re very grateful to have found him!”
— Mehnaz, 14 lessons with Thomas
“Thomas was a very helpful tutor! I've been having difficulties with SAT percentage questions, and he cleared it up very well. He went all the way back to the basics and it was very helpful as we slowly increased difficulty.”
— Saritha, 2 lessons with Thomas
“My children (5th grade male, 3rd grade female) have been working with Thomas for pretty much the entire summer. He’s been introducing math topics for the grade they are entering for them to get a head start. His help has been perfect for both of my children who have very different personalities and different skill sets. He works with them both with ease. My son finished the homework Thomas assigned to him recently completely with zero help from me. That’s a first in his entire schooling. There was one session where my daughter had a meltdown for no apparent reason. Thomas was very patient with her. I cannot say the same for myself. He let her have her moment while still working through the questions. I can’t say enough about how much I recommend Thomas for any age who needs support in mathematics. This is an investment in your child’s future that is well worth it. I’m excited for them to start school next month and be a little ahead. I’ll also add that it is clear that he is a trained teacher and not simply someone offering tutoring as a side gig. We have been to tutoring centers where this has been the case. There’s nothing wrong with that of course, but I needed what basically amounts to a one on one virtual teacher. If you’re looking for help. This is absolutely the right tutor. Can’t rave enough about him!”
— Cherish, 18 lessons with Thomas
“We’ve had a fantastic experience working with Thomas who is currently teaching geometry to our daughter and also helping her prepare for competition-level math.. He quickly understood our daughter’s strengths and learning style, and tailored lessons accordingly. What stands out most is Thomas’s flexibility, commitment and easy to reach, which has made scheduling and communication seamless. Beyond that, He genuinely care about our daughter's progress and growth, pushing her just the right amount while keeping her motivated and engaged. Highly recommend Thomas to anyone looking for a skilled, supportive, and dependable math tutor, especially if your child is aiming for more than just classroom success.”
— Thanuja, 22 lessons with Thomas
“Thomas K is the best teacher we’ve ever worked with. My son had one last chance to qualify for AIME through AMC 12, and Thomas stepped in with just one lesson — a 6-hour session that was incredibly thorough and focused. He quickly diagnosed my son's weak points, predicted the types of problems that would appear, and explained everything with clarity and patience. Thanks to Thomas, my son not only improved his confidence but actually qualified for AIME. We are beyond grateful. Highly recommend!”
— Ariana, 1 lesson with Thomas
“My daughter has only had one session so far but found the material Thomas covered to be very useful and found him to be a great teacher. She is looking forward to her next session.”
— Leslie, 2 lessons with Thomas
“Thomas has been a total lifesaver for Natalie this semester! He breaks down tough calculus concepts in a way that actually makes sense and is always patient, no matter how many questions she has. Natalie feels so much more confident going into her tests now, and that’s 100% thanks to his calm, clear, and encouraging teaching style. We’re really grateful we found him—highly recommend!”
— Kristi, 3 lessons with Thomas
“Thomas is truly gifted as a mathematician and an instructor. He will offer multiple different explanations for the same problem in calculus until I genuinely understand it.”
— Lola, 13 lessons with Thomas
“If you are looking for help for your child with AoPS, competition math, or honors/AP math, Thomas is an excellent choice. He is patient, highly knowledgeable, and can go through single or multiple topics in a very structured and easy-to-understand way.”
— Yakov, 78 lessons with Thomas
“I would recommend Thomas to any high schooler who is seeking help with math. My kid was struggling with AP calculus, and Thomas ‘s tutoring made a difference even after only a few sessions. Thomas understands the subject thoroughly and has a unique ability to break down complex concepts into understandable, manageable parts. His patience and clear explanations also helped build my kid’s confidence. Thomas is always punctual, professional, and prepared for each session. He is also flexible with scheduling and very responsive to any questions.”
— Xin, 51 lessons with Thomas
“I cannot recommend Thomas enough for anyone seeking a tutor for AP Calculus. His tutoring sessions have been nothing short of transformative for my son. Thomas's patience is truly exceptional. He never rushes through concepts, ensuring that my son understands each step before moving on. This has not only built my son's confidence but has also made learning calculus less daunting. What sets Thomas apart is his straightforward talking style. He explains complex calculus problems in a way that is clear and concise, avoiding the jargon that can often confuse students. His explanations are direct, which has made it easier for my son to grasp challenging topics quickly. Thanks to Thomas's teaching, my son has not only improved his grades but also developed a genuine interest in mathematics. Thomas’s approach has been pivotal in preparing my son for the AP exam, and we feel confident in his abilities now more than ever.”
— Yang, 26 lessons with Thomas
“Thomas provides AP Calculus instruction for our son. Our son was struggling and Thomas assessed the areas needed for improvement and put a plan in place for him. Thomas is very knowledgeable and patient and clearly explains difficult concepts.”
— Craig, 16 lessons with Thomas
“My child is in 6th grade and learing Pre Algebra with Thomas. Thomas quickly identifies the child's weaknesses and helps them practice to fill those gaps. By continuously asking questions, he keeps the child engaged throughout the lesson, encouraging them to think through and solve problems without getting bored. The child grasps the material quickly due to Thomas's clear explanations. My child enjoys math with Thomas.”
— Claire, 1 lesson with Thomas
“Thomas helped me learn my AP Calc AB materials very well! I was able to understand each problem I had difficulty with. He provided me with additional practice problems to ensure my mastery.”
— Eva, 6 lessons with Thomas
“Thomas answered all my questions and described the material in a way that made it easy for me to understand. He is brilliant, knows how to teach, and makes it simple! I wish I had found him early. I found him only one day before the final !!!! I appreciate that I ended up with a B+ since I was getting a C-.”
— Rohit, 1 lesson with Thomas
“I had a Calculus 1 class with Thomas. I always struggled with graph problems (f, f', and f"). I had no idea what to do or how to approach the problems. He explained it to me. Now, I completely get it. He made it super simple and easy. He is the best math teacher ever!!”
— Vivi, 2 lessons with Thomas
“Thomas did a fantastic job in patiently tutoring and correcting the small mistakes I would make on my Trigonometry homework. I was able to understand the material better with his simple yet effective methods of solving problems.”
— Ishil, 115 lessons with Thomas