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Award-Winning 12th Grade AP Computer Science Tutors

Certified Tutor
8+ years
Jane
I am a current student at Princeton University, obtaining a major in English with minors in Environmental Studies and Musical Theater. I graduated from Sewickley Academy in 2016 as a member of the Cum Laude Society with highest honors for all semesters. I am an AP Scholar with Honors, an Academic Al...
Princeton University
Current Undergrad Student, English

Certified Tutor
5+ years
Anna
With each of my experiences working with children my passion for education has grown. I first came to Austin to work with a Spanish literacy intervention program through Americorps called A Community for Education (ACE). After my service with ACE I taught at a dual language (Spanish-English) school ...
Oberlin College
Bachelors, Comparative American Studies
The University of Texas at Austin
Current Grad Student, Communication Sciences and Disorders

Certified Tutor
10+ years
Deborah
My MA in English with a concentration in Rhetoric and Composition, together with my MA in Adult Education and Continuing Education, qualified me to have a stellar forty-three-year career as a full-time college professor predominately in the University System of Georgia. I have successfully instructe...
Georgia State University
Master of Arts, English
University of Missouri-Kansas City
Master of Arts, Adult and Continuing Education
University of Georgia
Bachelor in Arts, Political Science and Government

Certified Tutor
10+ years
Hi. I love math and I love teaching math. I am a state certified high school math teacher. I have 31 years of classroom experience. I currently teach Pre-Calculus and AP Statistics.
Clark Atlanta University
Bachelor of Science, Mathematics

Certified Tutor
Katherine
Hi, my name is Katherine and I've been tutoring in various capacities since 2012. Although I'm currently studying Computer Science at Swarthmore College, I have expertise in a number of subject areas and I'd love to help you out.
Swarthmore College
Current Undergrad Student, Computer Science

Certified Tutor
4+ years
Samantha
I believe every student has a unique learning skill set and every teacher continues to learn from her students. To ensure every student receives the best tutoring, I strive to offer excellent communication and a diverse set of teaching skills.I obtained my Bachelor in Business Administration from th...
University of Wisconsin-Whitewater
Bachelor in Business Administration, International Business/French
Vermont Law School
Juris Doctor, International Law

Certified Tutor
6+ years
Christopher
I am a current student at Rutgers University on track to major in Electrical Engineering. I tutor a wide range of math from elementary level up to high school and college. This range includes algebra, trigonometry, pre-calc and calculus. I have had many experiences through my high school and outside...
Rutgers University-New Brunswick
Bachelor of Engineering, Electrical Engineering

Certified Tutor
Jerry
Hey, I enjoy teaching math, computer science, and the SAT! Contact me if you are interested in these.
The Texas A&M University System Office
Bachelor in Arts, Political Science and Government

Certified Tutor
8+ years
Amy
I have a B.A. in French and a diploma in Business French from the Chamber of Commerce and Industry in Paris. I also speak Greek, Italian, and Spanish.I have worked as a private tutor in the area of foreign languages, essay writing, and a variety of other subjects for more than a decade. In that time...
Hofstra
Bachelor in Arts, French

Certified Tutor
8+ years
Gabrielle
I am recent graduate of Binghamton University, with a Bachelor of Sciences in Biology. I am deeply committed to the value of education, and believe that learning is a gift and an opportunity for growth that should be available to everyone. For this reason, I am passionate about tutoring and helping ...
SUNY at Binghamton
Bachelor in Arts, Biology, General
Top 20 Technology and Coding Subjects
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Julie
Languages Tutor • +4 Subjects
I am a graduate of LaSalle University in Mexico City. I received my Bachelor of Science degree inBusiness Administration with a focus on management. I am also a certifiedteacher of Spanish. Since graduation I have worked in Human Resources and I havealso been tutoring children and adults in private and public schools, as wellas online. I am very enthusiastic about teaching my native language because Ifeel that in that way I am enriching my students' education and experiences inlearning aspects of another culture. One area where we seem to have the mostfun is prepping for exams and writing assignments. I am a firm proponent ofeducation, and as a tutor, my approach is based on each of my students'level of proficiency, their goals, and their learning pace. I focus on providinga pleasant and safe experience for my students. I prepare lesson plans that arecreative and introduce new topics in a fun way, spending enough time reviewingthe material. Afterwards, I allow students time to practice on their own. I encourage you to contact me to schedule so togetherwe can start achieving your goals
Anna
ACT Writing Tutor • +27 Subjects
I honestly love tutoring. While working in finance and publishing over the past decade, I have independently tutored students from many premiere NY and NJ high schools and universities. I continued tutoring even after joining a major private equity firm because of how much I enjoy working one-on-one with students. Breaking down seemingly complex subjects is one of my favorite pastimes--it's part of the reason I also enjoy writing about arcane financial topics like quanto spreads on sovereign CDS. I've also developed a newfound respect for the challenges students face when undergoing years of testing after developing my own study plan to pass the first two CFA exams (I'm taking the third exam in June). This experience has shaped how I work with students to tackle test-taking anxiety and master difficult material quickly.I have both a BA and MA in English from New York University.
Catherine
Algebra Tutor • +15 Subjects
Hello! My name is Catherine Raj and I am a second-year medical student at Ohio University Heritage College of Osteopathic Medicine. I graduated from The Ohio State University with a Bachelor's of Science in Neuroscience in 2022. Since 2015, I have tutored children from ages 3-16 in areas of math and reading, as well as their school curriculum. Apart from tutoring here, I have worked for the Kumon Learning Center as a teaching instructor for 5 years. While I am certified to tutor a broad range of subjects, I have years of experience with tutoring young children in math and reading, such as addition, subtraction, multiplication, division, phonics, reading comprehension, and much more. I connect with elementary and middle school students very well, as I believe in understanding children in order to give them a fulfilling tutoring experience. I also very much enjoy tutoring pre-algebra and algebra as those are my favorite math subjects, as well as my best! My students and I have always had a deeper level of understanding beyond the books and I pride my style of teaching on that aspect.
Grace
ACCUPLACER Arithmetic Tutor • +22 Subjects
I am a graduate of Harvard Graduate School of Education (3.95 GPA) and New York University (3.98 GPA). I have worked with students of all ages. I love adapting my teaching style to the individual needs of each student to help them fulfill their greatest potentials.
Sarah
Elementary School Math Tutor • +20 Subjects
I have been a special education teacher in Somerset County for the last 5 years. I have worked in self-contained classrooms and am currently working as a 4th grade resource room Reading and Math teacher. Next spring, I will graduate from Rutgers University's Graduate School of Education with an Ed.M in Reading Education. I will be a certified Reading Specialist as well as a certified supervisor. I am currently a certified Literacy Specialist.
Chester
Creative Writing Tutor • +18 Subjects
I love English, and good writing. Since I like working one-or-one or with a small group, tutoring is a great way for me to help young people communicate more effectively in writing. As a social scientist, I also like to talking about statistics and social science. I like to teach by example and ask lots of questions so students can discover answers themselves. When not working, I like to watch movies, exercise, and write science fiction.
Maria
ACT Prep Tutor • +15 Subjects
I received my Bachelor of Science degree in Biochemistry from Denison University. I am currently pursuing an M.D. at Case Western Reserve University. I've been a college-level teaching assistant for both introductory biology and general chemistry. Besides chemistry, I really enjoy tutoring for test prep (ACT and MCAT) because I view these types of tests to be a collection of puzzles to solve. It's a lot of fun helping students to figure out the logic behind these puzzles and apply it broadly, and it's incredibly rewarding to see this integration of knowledge translate to a high score. When working with students, I like to challenge them to identify the purpose of the problem or question and what underlying reasoning can be applied broadly in future questions. In doing so, students gain more long-term usable skills and the ability to think independently.
Juliet
Adult Literacy Tutor • +12 Subjects
Passionate social justice advocate eager to serve as a mentor to the youth. Sociologist at heart. I am the rose that grew from the concrete.
Theo
ACT Prep Tutor • +25 Subjects
I am a current undergraduate student at Columbia University in New York City, pursuing a Bachelors of Arts in History and Economics. These are two of the subjects that I enjoy tutoring the most, but I also have a penchant for tutoring and learning about math and literature. I am passionate about tutoring because I benefited from the personalized guidance of great tutors in my past and I really enjoy seeing students push themselves and develop an appreciation for subject areas or even the mental exercise of test-taking thanks to tutoring. I also believe that tutoring a subject area is the greatest way to maintain and develop understanding of its material for both the student and the tutor. I was an active tutor in high school in mathematics and history and as I take more classes in college, I look forward to tutoring students in those in which I understood the material really well. In my spare time, I enjoy reading about history, camping, biking, and traveling when I can (or exploring the incredible city of New York)!
Qin
Conversational Mandarin Tutor • +14 Subjects
Living in Great New York Area since 2008. Graduate student at Columbia University.Major in Finance + Economics (Undergraduate Program), and Public Administration (Graduate Program), Average GPA is 3.65.Speak Mandarin, English and Japanese.Subjects cover East Asian History (China & Japan), International Relation, Public sector (NPO related).
Top 20 Subjects
Frequently Asked Questions
Students most frequently struggle with object-oriented programming concepts—particularly inheritance, polymorphism, and encapsulation—since they require thinking about code structure abstractly. Array and ArrayList manipulation also trips up many students, especially when working with 2D arrays or nested loops. Additionally, the free-response section challenges students who understand individual concepts but struggle to synthesize them into complete, well-designed programs. String manipulation and recursive thinking round out the common pain points, as these require both conceptual understanding and careful implementation.
Free-response questions require students to write complete, functional code under time pressure—something that's very different from multiple-choice. A tutor can help you develop a systematic approach: reading the prompt carefully, identifying required classes and methods, planning your logic before coding, and leaving time to test your solution. Tutors can also teach you how to write code that's clear and efficient enough to earn full credit, and how to handle partial credit by writing code that at least partially solves the problem even if it's not perfect. Practice with past FRQs under timed conditions is essential, and a tutor can provide targeted feedback on your specific coding habits and help you avoid common mistakes like off-by-one errors or forgetting to initialize variables.
The exam gives you 3 hours for 40 multiple-choice questions and 4 free-response questions. Most students should spend roughly 1.5 hours on the multiple-choice section (about 2-3 minutes per question) and 1.5 hours on free-response (roughly 20-25 minutes per question, leaving buffer time). The key is not to get stuck: if a multiple-choice question is taking too long, mark it and move on. For free-response, spend the first few minutes understanding what's being asked before you start coding—rushing into code without a plan usually costs more time than it saves. A tutor can help you practice this pacing with full-length practice exams so you develop a rhythm that works for you.
OOP mastery requires moving beyond memorizing definitions to actually designing and writing classes. Start by understanding the "why" behind each concept: inheritance reduces code duplication, polymorphism allows flexible code design, and encapsulation protects data integrity. Then practice by writing your own classes from scratch—not just reading code—and refactoring code to use OOP principles. A tutor can help you recognize when to use inheritance versus composition, understand how method overriding works in practice, and design class hierarchies that make sense. Working through progressively complex projects (like creating a game with multiple character types or a data management system) helps these abstract concepts click in ways that isolated practice problems can't.
Algorithm efficiency matters, but not as much as correctness. The exam focuses more on whether your code works and is well-designed than on whether it's optimized for Big O notation—that's more of an AP Computer Science Principles topic. That said, you should understand basic efficiency concepts: why nested loops can be slow, why ArrayList operations differ from array operations, and when to choose appropriate data structures. The exam does occasionally ask you to trace through code or identify which approach is more efficient, so understanding efficiency helps you write better code and answer those questions. A tutor can help you balance writing correct, clear code first while developing an intuition for when efficiency matters.
Debugging is critical because even small errors—a missing semicolon, an off-by-one loop error, or a logic mistake—will cause your code to fail. You should practice reading error messages carefully and understanding what they're telling you, tracing through your code by hand to find where logic breaks down, and using print statements strategically to see what values your variables actually hold. The exam doesn't let you use an IDE debugger, so you need to be comfortable debugging with your eyes and brain. A tutor can teach you systematic debugging approaches: start by isolating which part of your code is broken, check your assumptions about what variables contain, and verify your logic step-by-step. Regular practice with buggy code snippets helps you develop the pattern recognition to spot errors quickly.
Practice tests should mirror exam conditions: take them timed, without notes or IDE help, and in one sitting if possible. After you finish, don't just check answers—analyze every question you missed or found tricky, even the ones you got right by luck. For multiple-choice, understand why the correct answer is right and why you were tempted by wrong answers. For free-response, compare your code to the official solution and identify gaps in your approach or coding style. A tutor can help you identify patterns in your mistakes (Do you always struggle with certain topics? Do you run out of time? Do you misread questions?) and create a targeted study plan. Taking 3-4 full practice tests spaced throughout your preparation is ideal, with focused review of weak areas between tests.
Recursion is notoriously tricky because it requires thinking about a problem in a fundamentally different way than students typically learn. The key is starting with very simple base cases and building up: understand how a recursive method for calculating factorial works before moving to string manipulation or array traversal. Many students benefit from drawing out the call stack or tracing through recursion step-by-step on paper before writing code. A tutor can help you develop the mental model of "what does this method do to one element, and how does it combine results?" rather than trying to follow every recursive call. Practice with increasingly complex recursive problems—searching arrays, building strings, tree traversal—helps recursion shift from confusing to intuitive.
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