Award-Winning 9th Grade AP Computer Science Tutors

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Award-Winning 9th Grade AP Computer Science Tutors

Jessica

Certified Tutor

2+ years

Jessica

BS
Jessica's other Tutor Subjects
9th Grade AP Computer Science
1st-3rd Grade Science
10th-12th Grade Computer Science
1st-12th Grade English

I have a Bachelor of Science in Mechanical Engineering from the College of Southern Nevada, where I graduated Magna Cum Laude in May 2015. I also earned a minor in Mathematics, which gave me a great foundation in both math and science. I am passionate about helping students understand math and scien...

Education

College of Southern Nevada

BS

Ryan

Certified Tutor

2+ years

Ryan

Bachelor's
Ryan's other Tutor Subjects
9th Grade AP Computer Science
9th-12th Grade Computer Science
Engineering
Software Engineering

I am a graduate of the University of Michigan, where I received my degree in Computer Science. In addition to working as a software engineer at top technology companies, I have enjoyed teaching and mentoring students through coding workshops, tutoring sessions, and peer guidance in computer science ...

Education

University

Bachelor's

Jessica

Certified Tutor

Jessica

PHD, Medicine
Jessica's other Tutor Subjects
College Algebra
Calculus
Algebra
Honors Chemistry

I am a licensed physician from Florida who is currently changing careers. I graduated from the University of Pennsylvania in 2009 and have extensive tutoring and editing experience. While a student, I became a certified writing tutor through the Critical Writing Department. Since I completed my writ...

Education

Nova Southeastern University

PHD, Medicine

University of Pennsylvania

Bachelors, History

University of Pennsylvania

undergraduate

Test Scores
SAT
1540
Jai

Certified Tutor

9+ years

Jai

Bachelors in Electrical Engineering and Computer Science
Jai's other Tutor Subjects
Calculus
Algebra
Electrical Engineering
ACT Writing

I'm a recent Stanford graduate (Electrical Engineering and Computer Science), and have been working at a major Management Consulting firm for a few years now. I personally scored a 2360 (out of 2400) on the SAT and 35 on the ACT and was successful in gaining admission to several top universities. I'...

Education

Stanford University

Bachelors in Electrical Engineering and Computer Science

Test Scores
SAT
1590
ACT
35
Kate

Certified Tutor

Kate

Masters, Environmental Engineering
Kate's other Tutor Subjects
AP Calculus BC
AP Calculus AB
College Algebra
Pre-Calculus

I'm available to tutor biology, chemistry, physics, math from Algebra up through AP Calculus, SAT test prep, and French. I've been tutoring students in science and math for 7 years. I also spent 8 months working and studying in France, and have tutored high school and adult students in French. When ...

Education

Massachusetts Institute of Technology

Masters, Environmental Engineering

Massachusetts Institute of Technology

Bachelors

Test Scores
SAT
1580
Rhea

Certified Tutor

6+ years

Rhea

Bachelor of Science, Biology, General
Rhea's other Tutor Subjects
AP Statistics
AP Calculus BC
AP Calculus AB
Pre-Algebra

I am a current student at the University of Chicago. I am working towards a Bachelor of Science in Biological Sciences, and I am on the pre-medical track. I am extremely passionate about tutoring, and I have several years of experience tutoring students in my high school's learning center in various...

Education

University of Chicago

Bachelor of Science, Biology, General

Test Scores
Perfect Score
SAT
1550
ACT
36
Jeffrey

Certified Tutor

6+ years

Jeffrey

Doctor of Philosophy, Mechanical Engineering
Jeffrey's other Tutor Subjects
Pre-Calculus
Geometry
Calculus
Algebra

I am enrolled in the Mechanical Engineering PhD program at Rice University which will begin Fall 2020, and I am hoping to return to academia as a professor after earning my PhD. In the meantime, I am looking to share my passion for gaining knowledge, specifically in STEM, by educating the up and com...

Education

University of Notre Dame

Bachelor of Science

Rice University

Doctor of Philosophy, Mechanical Engineering

Test Scores
ACT
34
Erika

Certified Tutor

Erika

Master of Public Policy, Public Policy
Erika's other Tutor Subjects
Pre-Algebra
Middle School Math
Calculus
Algebra

I am available to tutor middle and high school math, history and test prep. I have tutored math and history in the past and I previously taught a test prep course at a school in Hanoi, Vietnam. I have a lot of experience teaching all the need-to-know tricks to doing great on the SATS/ACTS! When I am...

Education

Harvard University

Master of Public Policy, Public Policy

Test Scores
ACT
32
Matthew

Certified Tutor

Matthew

Bachelors in Human Biology (concentration in Bioinformatics and Stem Cell Science)
Matthew's other Tutor Subjects
Pre-Algebra
College Algebra
Algebra 3/4
Arithmetic

I'm a highly creative person who works best with visual thinkers. Very recently graduated from Stanford University, I majored in Human Biology with a concentration in Bioinformatics and Stem Cell Science. Technical though my background may be, I am currently gigging as a singer/songwriter/composer i...

Education

Stanford University

Bachelors in Human Biology (concentration in Bioinformatics and Stem Cell Science)

Test Scores
SAT
1510
Pinelopi

Certified Tutor

6+ years

Pinelopi

Bachelor in Arts in Psychology
Pinelopi's other Tutor Subjects
Pre-Algebra
Pre-Calculus
Geometry
Calculus

I am a Duke University graduate with a Bachelors degree in Psychology. I have experience tutoring all levels of Spanish language, all sections of the SAT, as well as algebra, pre algebra, geometry, and pre-calculus! I love kids & I have a very flexible schedule and a lot of patience! Let me help you...

Education

Duke University

Bachelor in Arts in Psychology

Test Scores
SAT
1530

Meet Our Expert Tutors

Connect with highly-rated educators ready to help you succeed.

Tony

Calculus Tutor • +28 Subjects

I am a recent graduate of Yale University and incoming first year medical student at Columbia University. Originally from the DC area, I have always had a passion for science and medicine and pursued a degree in Biology while at Yale. During the 2008-2009 academic year, I tutored science, math, English, history, and Mandarin Chinese part-time with a DC-based tutoring company. At Yale, I worked as a freshman counselor to provide academic and career advice to incoming freshmen. I have taken both SAT and MCAT test prep classes and am familiar with both tests as well as the preparation necessary to score well. My personal career goals include attending medical school to pursue either immunology/infectious diseases or psych/neurology, teaching biology at the university level, and working in public/global health with either the CDC or the WHO.

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Zachary

Trigonometry Tutor • +35 Subjects

I am passionate about teaching and tutoring and I thoroughly enjoy helping students gain an understanding and a drive for their studies. I have a long history of working with students of all grade levels and abilities (elementary school through college), and I have a good understanding of strategies to excel in both general academics and standardized tests.

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Earnest

Pre-Algebra Tutor • +26 Subjects

I am comfortable with either setting. I'm confident that I can help you (or your student) achieve to the best of their ability, so please don't hesitate to get in touch!

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Tiffany

Pre-Algebra Tutor • +56 Subjects

I am available to tutor a broad range of subjects, I am passionate about test preparation, Accountancy, and Algebra.

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MaryAnn

Calculus Tutor • +21 Subjects

I am a published author who has enjoyed “coaching” our daughter, as she navigated through high school, college and graduate school. I mentor college juniors who are seeking careers in financial services, and I serve as a peer resource to professionals who are transitioning from private industry to the nonprofit sector. Hobbies: reading, cooking, writing, books, music, art, travel

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Sharon

Pre-Algebra Tutor • +29 Subjects

I am a graduate of the University of Chicago, and I will be starting a graduate program at Columbia in August. I am about to complete a year of service with City Year, an education non-profit that places young adults into under-served schools. As a City Year member, I worked full-time in the classroom with middle-school students who were in approximately the 10th percentile for math (meaning they score lower than 90% of students). One-fourth of those students were able to grow around 15 percentile points by the end of the year! Hobbies: reading, cooking, gardening, music, art, nature, books, writing

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Sami

Pre-Algebra Tutor • +19 Subjects

I am a Duke University graduate in Economics and Computer Science. I am currently pursuing an MBA degree at the Yale School of Management. I have worked in the financial field, both at a management consulting firm and a fortune 500 company. My hobbies include playing and coaching soccer. Hobbies: reading, writing, art, books, music

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Annie

Pre-Algebra Tutor • +28 Subjects

I am currently a second year medical student. I was a Physiological Sciences major at UCLA (class of 2015), and pursued research during my gap year between undergrad and medical school.

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Samuel

AP Calculus AB Tutor • +29 Subjects

I am a freshman at Caltech majoring in Applied and Computational Mathematics. My favorite subject to tutor is math because I find it very rewarding to simplify complex topics to aid in understanding. I have lots of tutoring experience. In high school, I ran and taught an SAT prep class and was vice president of my school's NHS chapter where I ran our tutoring program, and I, myself, tutored. I also was a teaching assistant in the summer of 2020 for a class in discrete mathematics through a program called PACT (Program in Algorithmic and Combinatorial Thinking). I love learning and hope to make the process enjoyable for you!

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Quinn

Calculus Tutor • +17 Subjects

I am willing to address any issue with an open mind and I try to develop strategies that play to a student's strengths. I would like to think I am very approachable and personable, and I have had very positive experiences with many students in the past using this philosophy. Outside of academics, I love playing basketball and watching sports, as well as chilling with friends, listening to music, and keeping up with politics and current affairs.

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Frequently Asked Questions

Students typically struggle most with algorithmic thinking and translating logic into code syntax. Concepts like loops, conditionals, and functions require understanding both the abstract logic and the specific programming language rules. Additionally, many 9th graders find object-oriented programming (classes and objects) conceptually difficult since it requires thinking about code structure differently than procedural programming. A tutor can break these down into smaller, digestible pieces and provide hands-on practice with real code examples.

Debugging is a critical skill that separates students who struggle from those who excel in AP Computer Science. A tutor can teach systematic approaches like using print statements strategically, understanding error messages, and tracing code execution step-by-step. They'll help you develop the habit of reading error messages carefully rather than guessing fixes, and show you how to isolate problems by testing small code segments independently. With guided practice, debugging becomes a logical process rather than a frustrating guessing game.

Many 9th graders get caught up memorizing syntax rules and lose sight of the underlying logic—or vice versa. A tutor focuses on teaching logic first through pseudocode and flowcharts, then introduces the specific syntax needed to express that logic in your programming language. This approach means you're not just copying code patterns; you understand why each line exists. Once the logic is solid, syntax becomes a tool to express your ideas rather than a barrier to learning.

Larger projects intimidate students because they seem overwhelming as a whole. A tutor teaches you to break projects into smaller, manageable components—start with the core logic, test it thoroughly, then add features incrementally. They'll help you plan your approach before coding, identify which parts are most challenging, and know when to refactor code to avoid getting stuck. Learning to work on projects methodically rather than trying to build everything at once dramatically reduces frustration and improves code quality.

Variable scope—understanding where a variable exists and can be accessed—is abstract and causes confusion for many 9th graders because it's invisible in the code. A tutor uses visual diagrams and tracing exercises to make scope concrete, showing exactly which parts of your code can 'see' which variables. They'll have you practice identifying scope errors before running code, which builds intuition. Once you can predict scope issues, you'll catch a whole category of bugs that otherwise seem mysterious.

Strong AP Computer Science students think about test cases while writing code, not after. A tutor teaches you to identify edge cases and boundary conditions early—what happens with empty inputs, negative numbers, or maximum values? They'll show you how to write simple test cases first, then build code to pass them. This approach catches bugs early and gives you confidence that your solution actually works. It's a professional programming practice that transforms how you approach every assignment.

Many AP Computer Science courses include pair programming or code reviews, which require communicating about code clearly—a skill separate from writing code itself. A tutor can help you articulate your logic, explain your design choices, and give constructive feedback on others' code. These skills matter because they help you learn from different approaches and prepare you for real-world programming environments. Tutoring can include mock code reviews where you practice explaining your thinking and receiving feedback productively.

While 9th graders should focus primarily on correctness and clarity, understanding that some solutions are more efficient than others is important. A tutor introduces efficiency concepts gradually—showing why nested loops might be slower than alternatives, or how certain data structures make operations faster. You don't need to memorize Big O notation early, but recognizing that your code's approach matters helps you write better solutions. As you progress, efficiency thinking becomes second nature and crucial for handling larger datasets.

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