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Award-Winning AP Computer Science Tutors

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Jonathan
I am a student at Cornell University studying Chemical Engineering and Computer Science. I'm living in Tarrytown right now and can help your son or daughter in math, science, or SAT/ACT prep! Over the past 5 years, I've accumulated many hours of tutoring experience. Some of the subjects I tutor incl...
Cornell University
Bachelors, Chemical Engineering and Computer Science

Certified Tutor
June
I'm an electrical engineering major at Brown University with interests in neuroscience, linguistics, and robotics, among other things. I've always loved learning, and my curiosity has led me through numerous subject areas. I constantly seek to apply my classroom learning in practical situations. For...
Brown University
Bachelors, Electrical Engineering

Certified Tutor
10+ years
Brice
I am an undergraduate student at the Massachusetts Institute of Technology, and I have tutored students since my early high school years. I've had experience instructing and guiding a variety of students, from young middle schoolers taking their first steps into the world of computer programming to ...
Massachusetts Institute of Technology
Current Undergrad, Computer Science

Certified Tutor
Wesley
I am currently a graduate student at Institute of Optics at the University of Rochester conducting research in Biophysical Chemistry. I recently graduated in June 2017 from the University of California - Irvine with two Bachelor degrees. One was in Biomedical Engineering and the other was in Materia...
University of California-Irvine
Bachelor of Science, Biomedical Engineering

Certified Tutor
Milan
Stanford University
Bachelors, Computer Science, English (double major)

Certified Tutor
10+ years
Joel
I am currently an undergraduate student at Cornell University. I intend to major in physics and either minor or double major in computer science.
Cornell University
Current Undergrad, Physics

Certified Tutor
10+ years
Srini
I am currently a student at Brown University seeking a degree in molecular biophysics. I love studying physics and its many applications in the realms of the life sciences. I have a strange penchant for ultimate frisbee and anything that involves golf (mini golf, frisbee golf, actual golf, etc.). On...
Brown University
Current Undergrad Student, Molecular Biophysics

Certified Tutor
Christina
I am starting graduate school this fall. My experiences as a student and scientist help me explain concepts and work through problems in a clear and engaging manner. I love teaching, and strive to make each personalized lesson enjoyable and productive. In addition to math and science, I can teach th...
Northwestern University
Bachelors, Computer Science

Certified Tutor
10+ years
Mohamed
I'm a student at the University of Pennsylvania, pursuing a master's in Mechanical Engineering in Robotics. My expertise are in Calculus, Differential Equations, and Mechanics.
The University of Pennsylvania
Masters, Mechanical Engineering
The University of Tulsa
Bachelors, Mechanical Engineering

Certified Tutor
Kevin
I am currently a prospective Computer Science Major at New York University. I am aiming for a 5 year bachelor's/master's degree in the College of Arts and Sciences. With tutoring, I am very patient, and it is my goal to make sure my tutees absolutely understand the material they need help with. In g...
New York University
Master of Science, Computer Science
New York University
Bachelor in Arts, Computer Science
Top 20 Technology and Coding Subjects
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William
AP Calculus AB Tutor • +33 Subjects
I am passionate about. As a chemical engineering student at Vanderbilt University, I have always been passionate about learning math and science. I have also particularly excelled in these fields, perhaps due to my passion, and I managed to score a 790 on the math SAT and SAT II. I also took 5 AP Exams as a high school student, receiving 5s in Calculus BS, statistics, computer science, biology, and chemistry. At my university, I received an honors scholarship for my academic performance in engineering, and I currently aspire to continue my education at a higher level. As a tutor, I will motivate students, set clear goals, and help students progress towards a higher level of understanding.
Christopher
AP Calculus BC Tutor • +33 Subjects
I am interested in Physics and Mathematics and working out practical problems from plumbing to electronics. I will someday go back for my Ph.D. in Physics but until then I am looking to grow as an engineer or computer programmer.
Eric
Pre-Algebra Tutor • +41 Subjects
I'm currently a computer science student at Swarthmore College. While I'm pursuing a technical degree I have diverse interests and I believe that my liberal arts background help me connect and communicate effectively as a tutor. I want to help you or your child understand the core concepts of any field instead of rattling off formulas and techniques for specific questions. To me, the mentor/mentee relationship is one of the most important human relationships --I will take any request seriously and put in my best effort.
Milo
Calculus Tutor • +34 Subjects
I am a master's student in computer science at the University of Massachusetts Amherst. I graduated from UMass with a bachelor's in computer science in 2020, and have been studying computer science since before college. I have prior experience as a tutor in my university's tutoring center for 3 years, and I am available to tutor basic math and most levels of computer science.
Omar
AP Calculus BC Tutor • +48 Subjects
I am a junior at Rice University working towards a Bachelor of Science in Computer Engineering. Since I moved to Houston, I have been tutoring family members to help them develop their math skills, and make sure they gain a better understanding of the subject. My experience with them made me realize that I greatly enjoy tutoring as it allows me to help others succeed in their studies. I have also worked as a lab assistant and a grader for the Fundamentals of Computer Engineering course at Rice University, and will be doing it again in the upcoming semester. I enjoy tutoring a variety of subjects such as math, physics, and chemistry. However, I am most interested in math and topics related to computer science, and hardware design as I find them most challenging. As a tutor my goal is not to simply help out my students with a given subject, but to make them think critically and understand how to learn on their own, so that they overcome every obstacle that they encounter, now and in the future. In my spare time, I enjoy reading non fiction books, and scientific journals, running, and a good basketball game.
Hannah
AP Calculus BC Tutor • +67 Subjects
I am excited to work with a broad range of students through Varsity Tutors. Hobbies: reading, cooking, music, writing, art, movies, books
John
AP Calculus BC Tutor • +54 Subjects
I am a professional dancer here in New York City, working with various project-based companies, generally in contemporary or contemporary ballet work. I have been tutoring, in various forms and fashions, since 2008 with organizations like National Honor Society and Tau Beta Pi (the original Engineering Honor Society), as well as freelance personal tutoring. I have two overarching aspirations in life. I would like to understand the world, and especially the people in it. I would also like to spread that knowledge, subsequently inspiring people to seek their own truths.
Ryan
College Algebra Tutor • +32 Subjects
I'm a Kellenberg graduate and currently attend University of Virginia studying Computer Science. My previous experience teaching is from within my local parish as a religious education teacher, but my current fortes in tutoring are high school math, computer science, essay writing and economics. I'm from East Meadow and outside of academics I'm usually hanging out with my friends, playing sports, and you can even find me serving you at one of the local diners!
Hassan
AP Calculus AB Tutor • +30 Subjects
I am a University of Central Florida Computer Science student. I excel at mathematics and have done well in this subject since I was young. I am very excited to help others get through the hurdles that they face. Cannot wait to help students with their mathematical needs.
Lloyd
Multivariable Calculus Tutor • +45 Subjects
I'm a data science major with a focus on economics at the University of Rochester. I'm interested in tutoring students in mathematics and/or computer science, as I enjoy both subjects thoroughly, and think that a good understanding of those subjects is useful to anyone, no matter their interests. I also do tutoring for AP/IB exams, SAT, and ACT because I think it's critically important for people to get into the best college they can for as cheap as possible, and those exams are the basis of that.
Top 20 Subjects
Frequently Asked Questions
Students typically find object-oriented programming concepts—especially inheritance, polymorphism, and encapsulation—challenging to grasp initially. The 2D array manipulation and ArrayList operations also trip up many students, particularly when combined with nested loops and algorithmic thinking. Additionally, the transition from procedural thinking to designing classes with proper method decomposition often requires targeted practice, and students frequently underestimate the importance of understanding how the AP exam's GridWorld or other case study frameworks apply these core concepts.
The exam splits into two sections: a 90-minute multiple-choice section (40 questions) testing conceptual understanding and code reading, and a 90-minute free-response section (4 questions) requiring students to write and debug code. Many students underestimate the multiple-choice section's difficulty—it requires not just knowing syntax but understanding what code does without running it. Effective tutoring addresses both skills: building speed and accuracy in reading unfamiliar code, and developing the ability to design solutions and explain your reasoning clearly in free-response questions.
Recursion requires students to think about problems in a fundamentally different way than the iterative loops they've mastered, and many struggle to visualize the call stack or trust that the recursive case will eventually terminate. The challenge intensifies when recursion is combined with arrays or strings, or when students need to trace through multiple recursive calls mentally. A tutor can break down recursion using visual tools like call stack diagrams and simplified examples, then gradually build complexity so students develop intuition rather than just memorizing patterns.
Free-response questions reward clear design and partial credit heavily—writing pseudocode or outlining your approach first prevents costly mistakes and earns points even if your code isn't perfect. Students should spend 2-3 minutes planning before coding, identifying what variables and loops they'll need. Tutoring focuses on teaching students to read prompts carefully for edge cases, write modular helper methods rather than one giant solution, and practice writing clean, readable code quickly so they can verify logic under pressure.
The multiple-choice section frequently presents buggy code or asks students to predict output without running it—skills that require deliberate practice. Tutors work through code-tracing exercises systematically, teaching students to track variable values through loops and method calls, spot off-by-one errors, and recognize common mistakes like null pointer issues or incorrect loop bounds. Regular practice with released AP exam questions builds pattern recognition so students can quickly identify problems and understand why code behaves unexpectedly.
With 90 minutes for 40 multiple-choice questions, students should aim for roughly 2 minutes per question, but skipping difficult questions and returning to them saves time and confidence. For free-response, allocating 20-25 minutes per question allows time for planning, coding, and review. Tutoring includes timed practice tests to help students find their rhythm, identify which question types slow them down, and develop strategies like solving the easiest free-response question first to build momentum.
Students who struggle with foundational concepts (loops, arrays, methods) typically see the biggest gains—often 2-3 score levels—when they close those gaps through focused tutoring. Students already scoring 3s or 4s can reach 5s by sharpening free-response writing clarity and eliminating careless mistakes on multiple-choice through deliberate practice. The timeline depends on starting point and consistency, but 8-12 weeks of regular tutoring combined with independent practice typically produces meaningful improvement.
Beyond strong Java proficiency and understanding of AP exam content, an effective tutor should have experience teaching object-oriented design, recognizing common student misconceptions, and explaining abstract concepts like recursion and polymorphism clearly. Familiarity with the specific AP case study (GridWorld or others) and access to released exam questions is important. Ideally, tutors have either taught AP Computer Science or scored well on the exam themselves and understand the exact skills the exam tests.
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