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Award-Winning IB Computer Science SL Tutors

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
Sebastian
I am currently working towards a bachelor's degree in Computer Science at the University of central Florida.
University of Central Florida
Current Undergrad, Computer Science

Certified Tutor
Dennis
I'm looking forward to helping students solve specific problems and teaching them in a way that they understand - whether that is fast-paced and technical or "just getting through it" - we will figure out how to work through your issues together.
Rutgers University (New Brunswick)
Bachelor in Arts, Communication

Certified Tutor
Muntaser
I am a graduate of Illinois Institute of Technology. I received my Bachelor of Science in Computer Engineering with a focus on Backend Software Development. During my stay in Illinois Tech I had experience as a Teaching Assistant (Java) for two years. Since graduation, I have worked as Software Engi...
Illinois Institute of Technology
Bachelors, Computer Engineering

Certified Tutor
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...
Nova Southeastern University
PHD, Medicine
University of Pennsylvania
Bachelors, History
University of Pennsylvania
undergraduate

Certified Tutor
9+ years
Jai
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'...
Stanford University
Bachelors in Electrical Engineering and Computer Science

Certified Tutor
Kate
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 ...
Massachusetts Institute of Technology
Masters, Environmental Engineering
Massachusetts Institute of Technology
Bachelors

Certified Tutor
Erika
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...
Harvard University
Master of Public Policy, Public Policy

Certified Tutor
6+ years
Rhea
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...
University of Chicago
Bachelor of Science, Biology, General

Certified Tutor
6+ years
Jeffrey
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...
University of Notre Dame
Bachelor of Science
Rice University
Doctor of Philosophy, Mechanical Engineering
Top 20 Technology and Coding Subjects
Meet Our Expert Tutors
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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
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
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.
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.
Matthew
Pre-Algebra Tutor • +39 Subjects
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 in NYC and tackle even the most hard-science of problems with a top-down, big-picture, holistic approach. If you have a propensity to look at problems in a cross- or inter-disciplinary manner (or want to learn how to do so), I'm the tutor for you!
Charles
AP Calculus AB Tutor • +25 Subjects
I am a junior Mechanical Engineering major at Yale, and I hope to become a Naval Aviator after college. I am also a varsity sailor, and enjoy playing music with friends when I can get some free time. I have been tutoring my fellow students throughout my entire academic career, and I would best describe my tutoring style as one that adapts to each students' needs. For example, I have always tried to frame questions in a different way so that the student can better understand the question. Some students need visual representations of numbers and systems to understand them, and others benefit more by understanding the concepts behind each formula. I prefer to tutor in math and physics, and especially with real world application problems. I hope to help students improve their standardized test scores and their understanding of the math and sciences so that they can achieve their academic goals! Hobbies: art, books, running, reading, music, writing
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.
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
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!
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.
Top 20 Subjects
Frequently Asked Questions
IB Computer Science SL students most commonly struggle with object-oriented programming (OOP) concepts like inheritance and polymorphism, understanding recursion and how to trace through recursive calls, and translating algorithmic thinking into actual code syntax. The transition from pseudocode to real programming languages trips up many students, as does grasping data structures like linked lists and trees—not just how they work theoretically, but how to implement and manipulate them. Additionally, students often find the computational thinking required for the exploration project challenging, since it demands both technical depth and the ability to document their design process clearly.
A tutor can teach you systematic debugging techniques like using print statements strategically, understanding error messages deeply (not just fixing the line that errored), and learning to isolate problems through test cases. Rather than jumping to solutions, expert tutors help you develop algorithmic thinking by walking through logic step-by-step, asking you to predict what code will do before running it, and building habits like writing pseudocode first. This approach transforms debugging from frustrating trial-and-error into a structured problem-solving skill that applies across all programming contexts.
The exploration project requires balancing technical implementation with clear documentation of your design process—something many students underestimate. A tutor can help you scope a project that's ambitious enough to demonstrate your skills but achievable within the timeline, guide you through iterative development with meaningful testing, and ensure your documentation (design specifications, code comments, and reflection) clearly shows your computational thinking. They can also review your code for efficiency and elegance, helping you move beyond "it works" to "it works well," which significantly impacts your final grade.
OOP mastery comes from building real projects where you design and implement your own classes, not just studying theory. A tutor can guide you through designing class hierarchies, understanding when to use inheritance versus composition, and implementing polymorphism in practical contexts. Working through code reviews where a tutor explains why certain OOP patterns are better than others—and having you refactor your own code to apply those patterns—builds deeper understanding than lectures alone. Starting with simple classes and gradually increasing complexity helps cement concepts like encapsulation and abstraction.
Recursion is hard because it requires thinking about a problem in a fundamentally different way than loops—you must trust that the recursive case works and focus on the base case and one level of recursion, not the entire chain. Tutors help by having you trace through recursive calls on paper with concrete examples (like calculating factorial or traversing a tree), visualizing the call stack, and then implementing recursion in small, manageable problems before tackling complex ones. The breakthrough usually comes when you stop trying to "see" the whole recursion and instead verify the logic at each level—a shift in thinking that a tutor can help you make.
Syntax errors are frustrating but ultimately less important than algorithmic thinking—the real skill IB Computer Science SL assesses. A tutor can help you move past syntax struggles by encouraging you to write pseudocode or flowcharts before coding, using IDE features like autocomplete and error highlighting effectively, and building familiarity with your chosen language through consistent practice. Once you've written pseudocode that clearly expresses your logic, syntax becomes a lookup task rather than a conceptual barrier. This separation of concerns helps you develop strong problem-solving skills even as your syntax fluency naturally improves.
Data structures make sense when you understand the problems they solve. A tutor can help you see why arrays are fast for access but slow for insertion, why linked lists excel at dynamic sizing, and why trees are perfect for hierarchical data—by having you implement these structures and use them in real projects. Rather than memorizing Big O notation, you'll experience performance differences firsthand by writing code that searches a sorted array versus a linked list, or by building a binary search tree for an actual application. This hands-on experience builds intuition that sticks far better than theory alone.
Beyond "does it work," good code review focuses on readability (clear variable names, logical structure), efficiency (avoiding unnecessary loops or redundant operations), and elegance (using language features appropriately). A tutor reviewing your code will highlight patterns you're missing, suggest refactoring opportunities, and explain trade-offs between different approaches. They'll also help you develop a critical eye for your own work by asking questions like "could this be clearer?" or "is there a more efficient way?" rather than just telling you the answer. This reflective practice is especially valuable for the exploration project, where demonstrating awareness of code quality directly impacts your grade.
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