Award-Winning AP Computer Science A Tutors
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Award-Winning AP Computer Science A Tutors serving St. Louis, MO

Certified Tutor
3+ years
Ravnoor
I am a undergraduate student at Cornell University. I am studying computer science in the College of Engineering. I have been tutoring in all subjects since 9th grade, mostly computer science and mathematics and SAT. My teaching philosophy is based on hands-on learning, and the motto of 'practice ma...
Cornell University
Bachelor of Science, Computer Science

Certified Tutor
5+ years
Florence
I am a rising senior at Duke University. I major in Computer Science and am also getting a minor in Physics. I have had experience tutoring/teaching as a teaching assistant for three classes: Intro to Databases, Electricity and Magnetism (for engineers), and Computer Network Architecture. I have had...
Duke University
Bachelor of Science, Computer Science

Certified Tutor
9+ years
David
I am a graduate of Stanford University, where I received a BS in Cognitive Science and an MS in Computer Science. After graduation, I spent a summer in Palestine, where I taught web development, app development, and entrepreneurship to a cohort of overenthusiastic high school students; now, I've mov...
Stanford University
Master of Science, Computer Science
Stanford University
Bachelor of Science, Cognitive Science
Stanford University
BS in Cognitive Science

Certified Tutor
5+ years
Alex
I am a rising sophomore majoring in Computer Science with a minor in Data Science at Rice University in Houston, TX. Naturally, my favorite subjects to teach are math and computer science, particularly programming languages like Python, Java, and Scratch. I have found great enrichment in these seemi...
Rice University
Bachelor of Science, Computer Science

Certified Tutor
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
9+ years
Dennis
I'm Dennis. I study physics, math, and computer science. I have done research about cosmic ray acceleration at supernova shock fronts in the Princeton University Department of Astrophysics, simulating how the turbulent plasmas push protons and ions. I have also worked at the Norfolk State University...
Princeton University
Bachelor of Science

Certified Tutor
8+ years
Pratik
I'm a premedical student at Cornell University with extensive experience tutoring students, especially in chemistry at the high school and undergraduate level, writing at the high school and undergraduate level, and SAT/ACT prep.
Cornell University
Bachelor in Arts, Biology, General

Certified Tutor
9+ years
Margaret
I am a Stanford student from Maryland studying Political Science and Computer Science. I graduated from high school in 2015, where I was active as the captain of my high school sailing team, a section leader in the orchestra, and part of the STEM magnet program Project Lead the Way. I am currently t...
Stanford University
Current Undergrad Student, Political Science and Government

Certified Tutor
6+ years
Ronit
I am an incoming student at Yale University studying computer science and economics. I'm also interested in math and chemistry. My favorite area to tutor is SAT, specifically the SAT math section. In my spare time, I enjoy playing golf, cooking, and reading thriller novels. I'm excited to start work...
Yale University
Bachelor of Science, Computer Science

Certified Tutor
8+ years
Ankit
I am Ankit Jajoo. I am enrolled in Duke University Class of 2022 studying neuroscience and computer science. STEM is my number one passion, while history is my number one interest. Humanities and STEM not only coexist, but work together often in life. While STEM provides the foundation for the futur...
Duke University
Bachelor of Science in Neuroscience and Computer Science
Practice AP Computer Science A
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Frequently Asked Questions
AP Computer Science A focuses on Java programming fundamentals and object-oriented design. The curriculum includes variables and data types, control structures, arrays and ArrayLists, object-oriented programming concepts (classes, inheritance, polymorphism), algorithms, and recursion. Students also learn to write code that solves problems, trace code execution, and understand how different programming constructs work together. Mastering these topics prepares students for the multiple-choice and free-response sections of the AP exam.
The AP Computer Science A exam is 3 hours long and consists of two sections: a 90-minute multiple-choice section with 40 questions (50% of score) and a 90-minute free-response section with 4 coding problems (50% of score). The multiple-choice questions test conceptual understanding and code tracing, while the free-response section requires students to write Java code from scratch to solve problems. Success on both sections requires strong coding skills, understanding of algorithms, and practice with timing to complete all questions.
Many students struggle with object-oriented programming concepts like inheritance and polymorphism, which require thinking about code structure differently than procedural programming. Time management is another significant challenge—the free-response section requires writing correct, efficient code under pressure. Additionally, students often find it difficult to trace complex code logic, understand when to use different data structures (arrays vs ArrayLists), and debug their own code effectively. Personalized tutoring can help identify these weak areas early and build confidence through targeted practice.
Varsity Tutors connects you with expert tutors who can break down challenging concepts like recursion and object-oriented design into manageable pieces, provide detailed code walkthroughs, and give you practice writing free-response solutions under timed conditions. Tutors can also help you develop a study schedule that balances learning new topics with consistent practice on past exam questions. With personalized 1-on-1 instruction, you'll get immediate feedback on your code and strategies to improve both your accuracy and speed on test day.
Score improvement depends on your starting point, consistency with practice, and how much time you dedicate to tutoring. Students who work with tutors typically see the most gains by focusing on their weakest areas—whether that's understanding complex algorithms, mastering free-response problem-solving, or improving code tracing accuracy. Most students benefit from starting tutoring several months before the exam to allow time for skill-building and multiple practice tests. Your tutor can help you set realistic goals and track progress throughout your preparation.
Practice tests are essential for AP Computer Science A preparation because they help you understand the exam format, build time management skills, and identify specific weak areas before test day. Taking full-length practice tests under timed conditions simulates the actual exam experience and reveals whether you're struggling with particular concepts or just need to work faster. Your tutor can review your practice test results to pinpoint patterns in your mistakes and adjust your study plan accordingly, ensuring you're spending time on what will most improve your score.
Varsity Tutors connects you with expert tutors for students in St. Louis who specialize in AP Computer Science A. When you reach out, you'll be matched with a tutor based on your specific needs, schedule, and learning style. Whether you need help with a particular topic like recursion or want comprehensive exam prep, Varsity Tutors ensures you get personalized 1-on-1 instruction tailored to your goals. The matching process is straightforward, and you can start working with your tutor on your timeline.
Your first session is an opportunity for your tutor to understand your current level, learning goals, and any specific challenges you're facing with Java or exam preparation. Your tutor may ask about topics you find confusing, review your previous coursework or practice test results, and discuss your timeline for the AP exam. Together, you'll create a personalized study plan that addresses your weak areas and builds on your strengths. This foundation ensures that every subsequent session is focused and productive.
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