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Harvard Grad| Advanced Math & Physics Tutor|AP, SAT & ACT Prep
David H.

5.0 (166 ratings)

321 hours tutoring

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About David

Bio

I’m a retired data scientist/algorithmic trader turned full-time educator with a deep love for mathematics and physics.
I hold Master’s degrees in Engineering and Mathematics from Columbia University, (where I graduated with a GPA above 4.0), as well as an MBA from the London School of Economics. Having competed in national Math and Physics Olympiads and later taught at the graduate level, I know what it takes to succeed.
I specialize in AP Mathematics, AP Physics, and SAT preparation,...

I’m a retired data scientist/algorithmic trader turned full-time educator with a deep love for mathematics and physics.
I hold Master’s degrees in Engineering and Mathematics from Columbia University, (where I graduated with a GPA above 4.0), as well as an MBA from the London School of Economics. Having competed in national Math and Physics Olympiads and later taught at the graduate level, I know what it takes to succeed.
I specialize in AP Mathematics, AP Physics, and SAT preparation, helping students strengthen their conceptual understanding, problem-solving skills, and exam technique. My goal isn’t just higher grades or test scores (though we’ll get those!) — it’s helping students truly understand what they’re learning and build the confidence to tackle any challenge independently.

My teaching journey began as a graduate student at Columbia, tutoring high schoolers who were struggling with math and science. Since then, I’ve served as a teaching assistant and Dean’s Tutor for advanced university courses, supporting students in mastering everything from Calculus and Linear Algebra to Engineering Physics.

In recent years, I’ve helped students significantly raise their SAT scores — often by 100–200 points — through clear explanations, practical test strategies, and personalized feedback. Whether it’s working through tricky AP Calculus concepts or optimizing your SAT problem-solving speed, I bring patience, structure, and genuine care to every lesson.

I genuinely love mathematics and physics. That love is what drives my teaching, it’s not just about getting the right answers, but about building deep understanding and intellectual curiosity. My ultimate goal as a tutor is to guide my students to a point where they no longer need a tutor.

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Education

Harvard University
Mathematics
Columbia University
Masters
London School of Economics
MBA

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Approved Subjects

ACT Math

ACT Math

I specialize in SAT/ACT Math tutoring, combining deep subject knowledge with proven test strategies. I tutor ACT Math in-person through Columbia’s Tutoring Agency, helping inner-city students improve their scores and confidence. I’ve helped students reach their target scores and often surpass them through clear explanations and structured practice. My sessions focus on building problem-solving skills, pacing, and accuracy under timed conditions. Over the years, I’ve created my own comprehensive library of ACT-specific materials, organized by mathematical themes, subtopics, and difficulty levels. I teach students how to spot patterns, interpret tricky phrasing, and avoid common ACT traps. My custom drills include the most frequent question types and word-play variations seen on real tests. We also focus on pacing and building accuracy under timed conditions, so students perform their best on test day. Every session includes a balance of guided problem-solving, review, and independent practice to reinforce key techniques. Beyond content, I help students develop the confidence and composure needed for high-stakes testing. My ultimate goal is not just a score increase, but to equip each student with problem-solving skills that last well beyond the SAT/ACT.
Algebra 1

Algebra 1

In Algebra 1, I focus on three pillars: Concept clarity: making sure you truly understand the “why” behind each topic, not just the steps. Structured problem solving: breaking questions into clear, repeatable methods you can apply under test conditions. Confidence building: using targeted practice and review to help you feel steady and prepared before quizzes and exams. Over the years, I’ve created my own structured materials that group problems by topic and difficulty, so practice is always focused and effective. I also teach strategies for recognizing patterns, reducing errors, and tackling word problems with clarity and confidence. Algebra 1 is a foundational subject in Mathematics and first real challenge for many so I’m committed to helping you not only improve your grades but also build real confidence in the subject. More than just preparing for exams, my goal is to help you truly understand and even enjoy mathematics so future topics like calculus come naturally.
Algebra 2

Algebra 2

In Algebra 2, I focus on three pillars: Concept clarity: making sure you truly understand the “why” behind each topic, not just the steps. Structured problem solving: breaking questions into clear, repeatable methods you can apply under test conditions. Confidence building: using targeted practice and review to help you feel steady and prepared before quizzes and exams. Over the years, I’ve created my own structured materials that group problems by topic and difficulty, so practice is always focused and effective. I also teach strategies for recognizing patterns, reducing errors, and tackling word problems with clarity and confidence. Algebra is a foundational subject in Mathematics and first real challenge for many so I’m committed to helping you not only improve your grades but also build real confidence in the subject. More than just preparing for exams, my goal is to help you truly understand and even enjoy mathematics so future topics like calculus come naturally.
AMC (Competition math)

AMC (Competition math)

I have advanced degrees in Mathematics and Engineering from Harvard and Columbia. During My high school years I successfully competed in USJMO, USAMO, F=ma as well as science olympiads I specialize in preparing students for competitive math exams like AIME, AMC and F=ma. With expertise in advanced problem‑solving across algebra, geometry, and calculus, I break down complex concepts into clear, structured lessons. My focus is on building confidence, sharpening analytical skills, and guiding students toward success in high‑level competitions.
Calculus

Calculus

Calculus is where mathematics truly comes alive. It’s the bridge between abstract ideas and the real world. I’ve taught students at every level, from AP Calculus AB/BC to advanced multivariable and graduate-level courses. With two Master’s degrees in Mathematics and one in Engineering from Columbia University, I bring both academic depth and practical insight from my years working in quantitative finance and data science. My approach focuses on building strong conceptual understanding before moving to problem-solving mastery. I’ve helped AP students move from struggling to confidently scoring 5s, and guided university students through the toughest topics - from limits and derivatives to differential equations and vector calculus. Lessons are personalized to the student’s pace, goals, and preferred learning style. Whether your aim is exam success or a deeper appreciation of the subject, I’ll help make Calculus clear, intuitive, and rewarding.
Geometry

Geometry

In Geometry, I focus on three pillars: Concept clarity: making sure you truly understand the “why” behind each topic, not just the steps. Structured problem solving: breaking questions into clear, repeatable methods you can apply under test conditions. Confidence building: using targeted practice and review to help you feel steady and prepared before quizzes and exams. Over the years, I’ve created my own structured materials that group problems by topic and difficulty, so practice is always focused and effective. I also teach strategies for recognizing patterns, reducing errors, and tackling word problems with clarity and confidence. Geometry is a foundational subject in Mathematics and first real challenge for many so I’m committed to helping you not only improve your grades but also build real confidence in the subject. More than just preparing for exams, my goal is to help you truly understand and even enjoy mathematics so future topics like calculus come naturally.
Linear Algebra

Linear Algebra

I hold a Master’s in Applied Mathematics from Columbia University, where I also served as a teaching assistant and Dean’s Tutor for advanced math courses, including Linear Algebra. My professional background includes work in data science and algorithmic trading, both deeply grounded in Linear Algebra concepts like vector spaces, eigenvalues, and matrix transformations. I focus on building true conceptual understanding rather than rote computation. My students learn not just how to solve problems, but why the methods work and skills that translate directly to higher-level math and real-world applications.
Physics

Physics

Having studied physics to the postgraduate level and tutored AP students for years, I know how to explain even the toughest topics in clear, relatable ways. I use structured study plans, targeted practice, and custom review materials I’ve developed over time. Each lesson is tailored to student's needs, whether they’re aiming to boost a grade, solidify fundamentals, or achieve a top AP score. I take pride in helping students not only excel on exams but also grow to appreciate the beauty of physics. My lessons focus on building intuition, confidence, and problem-solving skills, so you can tackle both conceptual and calculation-based questions with ease.
Prealgebra

Prealgebra

In Prealgebra, I focus on three pillars: Concept clarity: making sure you truly understand the “why” behind each topic, not just the steps. Structured problem solving: breaking questions into clear, repeatable methods you can apply under test conditions. Confidence building: using targeted practice and review to help you feel steady and prepared before quizzes and exams. Over the years, I’ve created my own structured materials that group problems by topic and difficulty, so practice is always focused and effective. I also teach strategies for recognizing patterns, reducing errors, and tackling word problems with clarity and confidence. Prealgebra is a foundational subject in Mathematics and first real challenge for many so I’m committed to helping you not only improve your grades but also build real confidence in the subject. More than just preparing for exams, my goal is to help you truly understand and even enjoy mathematics so future topics like calculus come naturally.
Precalculus

Precalculus

In Precalculus, I focus on three pillars: Concept clarity: making sure you truly understand the “why” behind each topic, not just the steps. Structured problem solving: breaking questions into clear, repeatable methods you can apply under test conditions. Confidence building: using targeted practice and review to help you feel steady and prepared before quizzes and exams. Over the years, I’ve created my own structured materials that group problems by topic and difficulty, so practice is always focused and effective. I also teach strategies for recognizing patterns, reducing errors, and tackling word problems with clarity and confidence. Precalc is a foundational subject in Mathematics and first real challenge for many so I’m committed to helping you not only improve your grades but also build real confidence in the subject. More than just preparing for exams, my goal is to help you truly understand and even enjoy mathematics so future topics like calculus come naturally.
Probability

Probability

I hold a Master’s in Applied Mathematics from Columbia University, where I also served as a teaching assistant and Dean’s Tutor for advanced math courses, including Probability Theory. My professional background includes work in finacial math and algorithmic trading, both deeply grounded in probability theory. I focus on building true conceptual understanding rather than rote computation. My students learn not just how to solve problems, but why the methods work and skills that translate directly to higher-level math and real-world applications.
PSAT

PSAT

I specialize in SAT/PSAT Math tutoring, combining deep subject knowledge with proven test strategies. I tutor PSAT and SAT Math in-person through Columbia’s Tutoring Agency, helping inner-city students improve their scores and confidence. I’ve helped students reach their target scores and often surpass them through clear explanations and structured practice. My sessions focus on building problem-solving skills, pacing, and accuracy under timed conditions. Over the years, I’ve created my own comprehensive library of SAT-specific materials, organized by mathematical themes, subtopics, and difficulty levels. I teach students how to spot patterns, interpret tricky phrasing, and avoid common exam traps. My custom drills include the most frequent question types and word-play variations seen on real tests. We also focus on pacing and building accuracy under timed conditions, so students perform their best on test day. Every session includes a balance of guided problem-solving, review, and independent practice to reinforce key techniques. Beyond content, I help students develop the confidence and composure needed for high-stakes testing. My ultimate goal is not just a score increase, but to equip each student with problem-solving skills that last well beyond the SAT.
SAT Math

SAT Math

I specialize in SAT Math tutoring, combining deep subject knowledge with proven test strategies. I tutor SAT Math in-person through Columbia’s Tutoring Agency, helping inner-city students improve their scores and confidence. I’ve helped students reach their target scores and often surpass them through clear explanations and structured practice. My sessions focus on building problem-solving skills, pacing, and accuracy under timed conditions. Over the years, I’ve created my own comprehensive library of SAT-specific materials, organized by mathematical themes, subtopics, and difficulty levels. I teach students how to spot patterns, interpret tricky phrasing, and avoid common SAT traps. My custom drills include the most frequent question types and word-play variations seen on real tests. We also focus on pacing and building accuracy under timed conditions, so students perform their best on test day. Every session includes a balance of guided problem-solving, review, and independent practice to reinforce key techniques. Beyond content, I help students develop the confidence and composure needed for high-stakes testing. My ultimate goal is not just a score increase, but to equip each student with problem-solving skills that last well beyond the SAT.
Statistics

Statistics

AP Statistics can feel very different from traditional math, and I help students gain confidence by making the ideas clear and intuitive. My approach focuses on understanding concepts, interpreting data, and communicating results clearly; all essential for success on the AP Statistics exam. I guide students through probability, sampling, confidence intervals, hypothesis testing, and regression with step-by-step explanations and plenty of targeted practice. Lessons are tailored to your pace and learning style, whether you are struggling with foundations or aiming for a top score. I also emphasize proper use of statistical language, graphs, and calculators, which are critical for earning full credit. Beyond exam preparation, I help students develop statistical thinking they can apply in college and real-world settings.
Trigonometry

Trigonometry

In Trigonometry, I focus on three pillars: Concept clarity: making sure you truly understand the “why” behind each topic, not just the steps. Structured problem solving: breaking questions into clear, repeatable methods you can apply under test conditions. Confidence building: using targeted practice and review to help you feel steady and prepared before quizzes and exams. Over the years, I’ve created my own structured materials that group problems by topic and difficulty, so practice is always focused and effective. I also teach strategies for recognizing patterns, reducing errors, and tackling word problems with clarity and confidence. Trigonometry is a foundational subject in Mathematics and first real challenge for many so I’m committed to helping you not only improve your grades but also build real confidence in the subject. More than just preparing for exams, my goal is to help you understand and even enjoy mathematics so future topics like calculus come naturally.
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Ratings and Reviews

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5.0 (166 ratings)
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Reviews

Knowledgeable and Passionate Tutor

David is the best tutor I have worked with in physics. Before working with him, I was mostly memorizing formulas without really understanding them, but after a few sessions I started to see where each equation came from and how the concepts actually fit together. He explains difficult topics like 2D motion and kinematics in clear, logical steps and constantly asks guiding questions so I learn how to think through problems on my own instead of just copying solutions. He uses diagrams and real-life examples that make abstract ideas easy to visualize and remember, and he is extremely patient and encouraging, always willing to explain a concept in different ways until it finally clicks. He also gives me focused practice and clear summaries, which makes studying for tests much more efficient. Because of David, my grades and test scores have improved, but more importantly I feel confident in physics and genuinely enjoy the subject. He is always prepared prior to the lesson, and I am certainly looking forward to having more lessons with David.

Chris, 12 lessons with David

David made math fun!

My son absolutely loves his lessons with David and always says that he actually makes math fun! My son is planning to participate in the AMC 8 soon, and David will be helping him prepare. We are really looking forward to seeing his progress in this exciting new chapter!

Yajuan, 9 lessons with David

Knowledgeable

David’s expansive knowledge and ability to explain complex ideas clearly has made a significant difference in my learning. He has a remarkable way of breaking down difficult concepts into simple, understandable steps, allowing me to grasp material in a much shorter amount of time than I expected. His depth of understanding is evident in the way he connects ideas and anticipates questions before they even arise. Thanks to his guidance, topics that once felt overwhelming quickly became manageable and even enjoyable to work through. I highly recommend David to anyone looking for someone who can make challenging concepts clear and accessible.

Gautam, 5 lessons with David

Very supportive

We are incredibly grateful for the support our son received from Mr David for AP Calculus BC. From the very beginning, David demonstrated not only a strong mastery of the material, but also a remarkable ability to connect with students and build their confidence.

Saisree, 4 lessons with David

knowledgeable and humorous tutor

We tried the first physics class with David. My daughter really enjoyed it. David demonstrated the concepts in an easy way. He also encouraged her when discussing every question. What impressed me most is that they were immersed in the last question and even forgot the time. I can feel that David has a strong passion in physics and cares more about the student and views tutoring beyond just a business. We like David. And we are looking forward more sessions with him in the near future.

Jie, 1 lesson with David

David the Magnificent

David is one of the most magnificent tutors I've ever had. He's very knowledgeable on the variety of topics he teaches such as Physics C and Calculus BC, both of which I have taken lessons on. I can deeply affirm that not only his knowledge on these topics, but that his teaching skills and especially his reasoning is of the highest quality. I have had many teachers especially for math, since the beginning Middle School from Algebra 1 till now as a High School Junior with Calculus BC. Many of them come off as unfriendly and unhelpful with their very boxed in mindsets, purely reliant on memorization, and their lack of knowhow on the why of the topic. David is different in this regard. His explanations are extremely clear, understandable, and impactful due to his masterful repertoire of Math Skills, translating to everything he does. He also understands the struggle of math, especially with Calculus BC where there are too many formulas creating an impossibility to remember all of them. David teaches the skills to deal with the issue. Too many formulas? Just remember a few and derive the rest. Conceptual Misunderstandings? He brings out diagrams and images to let you see and understand, with his explanations supplementing your realizations. I cannot stress enough of how much of a help David has been through Calculus BC and sincerely recommend this tutor for your math troubles.

Gul sam, 13 lessons with David

A Total Game-Changer for My Child’s SAT Prep. Truly Exceptional SAT Tutoring!

I can’t say enough good things about Dave. My daughter went into SAT prep totally stressed out and honestly pretty defeated after her first try. Working with David completely changed the game. He breaks things down in a way that finally clicked for my daughter, and he uses test-specific tricks and strategies that you just don’t get from generic tutors. What really stood out is how patient and encouraging he is, my daughter actually enjoyed the sessions (a miracle in itself). Her confidence shot up, and so did her score… by almost 200 points. For this I will forever be grateful to David. If you want someone who genuinely knows the exam inside and out and actually connects with teens, David is your guy

Andres, 20 lessons with David

Knowledgeable and Helpful Tutor.

I had lessons with David about the SAT math. I was struggling to fit into the time limit for all the tasks in the test before, but after just a few lessons with David it has become much easier! David gave me thorough lessons on each of the topics in the test and gave me some crucial tips for spending less time on each question and using Desmos more often in the test! Whenever I have problems with any of the tasks he always helps me resolve them. Lessons with David are always fun and go in-depth into each topic of the test, I highly recommend!

Anastasia, 13 lessons with David

Experienced, Helpful, and Fun

David is an incredibly helpful and patient tutor. He explains difficult physics concepts in a way that actually makes sense, and he always takes the time to make sure I truly understand the material. Most importantly, he makes physics fun. I’ve learned more from him than I did from my physics teacher, and his support has made a huge difference in my confidence. I really appreciate the clarity he brings to every lesson. Highly recommend!

William, 14 lessons with David

Knowledgeable and Helpful Tutor

David thought our Computational Linear Algebra. He went above and beyond to explain the topics and to cover a lot of concepts in a short time. He helped to prepare well for the test. David also came up with his own practice questions to simulate the tests and made sure my son was thorough enough to do very well on the test. I strongly recommend David if you need help with computational linear algebra.

Karthik, 4 lessons with David