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A-Level Computer Science Tutor Online for AQA & OCR
Expert 1-on-1 A-Level Computer Science tutoring for AQA and OCR. Master algorithms, programming, and computational thinking with qualified UK tutors — and reach Grade A or A*.
- Matched to AQA and OCR
- One-to-one lessons focused on clear understanding and exam practice
- Progress updates shaped around the student's priorities
Our expert tutors
Find one-to-one tutors across Cambridge, Pearson Edexcel, AQA, OCR and IB courses, with matching based on the student's subject, qualification and current stage.
Trusted by 10K+ students & families



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The Right Tutor Makes the Difference
Subject specialists
Tutors understand the subject deeply and teach at the required level.
Familiar with exam expectations
Specifications, past papers and assessment requirements guide lesson planning.
Selected before assignment
Each tutor completes our review and teaching-assessment process.
Matched beyond the subject name
We consider the board, qualification, level and learning needs.
What Happens In A One-to-One A-Level Computer Science Lesson?
Our tutors build fluent programming skills alongside the theory examiners reward — the combination of confident coding and precise written explanation is what produces A and A* grades in Computer Science.
Step 1
Review recent work
We start with recent code or a past-paper theory question and confirm the exam board and current topic.
Step 2
Identify the gap
The tutor distinguishes coding implementation gaps from written theory technique or NEA progress issues.
Step 3
Rebuild the missing skill
The lesson pairs an algorithm with hands-on coding, or builds mark-scheme-precise written answers.
Step 4
Apply it to a current exercise
The student applies the skill to a program to write or a past-paper theory question.
Step 5
Change the problem
A different problem checks whether the algorithm or concept transfers, not just a memorised solution.
Step 6
Record the next priority
The lesson ends with the next data structure, theory topic, or NEA milestone.
What we cover
A-Level Computer Science Topics Students Can Actually Apply.
Work through theory and programming together, so algorithms are understood on paper and fluently implemented in code.
Fundamentals of Programming
Start hereData types, variables, sequence, selection and iteration, subroutines, arrays, records, string handling, and file operations — usually in Python, C#, VB.NET, or Java depending on your centre.
Data Structures & Algorithms
Stacks, queues, linked lists, trees, graphs and hash tables, plus searching (linear, binary), sorting (bubble, merge, quick), and graph/tree traversal algorithms.
Computational Thinking & Abstraction
Decomposition, abstraction, pattern recognition, and problem-solving — including thinking ahead, procedurally, logically, and concurrently as tested in the written papers.
Data Representation
Binary, hexadecimal, two's complement, floating point, normalisation, character sets, bitwise operations, and compression, encryption and hashing.
Computer Systems & Architecture
The CPU and fetch-execute cycle, Von Neumann architecture, registers, addressing modes, assembly language (Little Man Computer / LMC), and system software.
Networks, Databases & the Web
The TCP/IP stack, network topologies, protocols, client-server and web technologies, SQL, relational database design, normalisation, and transaction processing.
Theory of Computation
Big-O complexity, finite state machines, regular expressions, Reverse Polish Notation, Turing machines, and the limits of computation — a major discriminator at A*.
Consequences of Computing
Ethical, legal, cultural, and environmental impacts of technology — the extended-response morality and law questions that many students under-prepare for.
See this plan built around your child's exact paper.
Book Free Demo+1.7
average grade improvement
What Is Actually Limiting the Student's Computer Science Marks? And How We Fix It.
1Translating theory into working code+
Students often understand an algorithm on paper but struggle to implement it. We pair every theory topic with hands-on coding — tracing then writing merge sort, a stack, or a binary tree — so the concept and the code reinforce each other and both exam papers are covered at once.
2The Non-Exam Assessment (NEA) project+
The programming project is worth up to 20% and derails students who pick an unsuitable problem or leave it late. We help scope a project that hits the top mark band, build it in stages, and evidence the analysis, design, and testing the mark scheme demands — without ever writing it for you.
3Big-O complexity and theory of computation+
The most abstract topics — complexity, finite state machines, and Turing machines — separate A from A*. We teach them with concrete worked examples and past-paper drills using the exact mark-scheme language each board expects, so these high-value marks become reliable.
Family trust
Why Parents Chose Combo.
A clear tutor match, a plan built around the real paper, and progress parents can follow from week to week.
Coding and theory paired in every session
Exam success needs both fluent code and precise written explanation, so we build both together.
Algorithms taught, then implemented, in the same lesson.
NEA guidance that keeps it your own work
We help scope and structure a top-band project without ever writing it for you.
Analysis, design and testing evidenced properly.
Abstract topics made concrete
Big-O, finite state machines and Turing machines are taught with worked examples, not just definitions.
The topics that most often separate A from A*.
Verified IGCSE feedback
What IGCSE Families Say About Combo Tutors
Focused, one-to-one support that helps students understand difficult topics and prepare with confidence.
- IB
- A-Level
- IGCSE
- GCSE
- SAT
- ACT
Experience the right tutor before you decide
Meet your recommended tutor in a private one-to-one trial. Share your child’s current priorities, see how the tutor teaches, and decide whether the fit feels right before booking regular lessons. No credit card. No commitment.
- Expert Tutors
- Flexible Schedule
- Affordable Pricing
Quick questions
FAQs About A Level Computer Science
Helpful answers about exam boards, syllabus topics, tutor matching and lesson support.
Which programming language should I use for A-Level Computer Science?
It depends on your centre and board. AQA and OCR accept several languages including Python, C#, Java, VB.NET, and C++. Python is the most common in schools, but our tutors are fluent across all the major languages and will support whichever one your centre has chosen for the exam and NEA.
How much of the grade is the coursework project (NEA)?
The Non-Exam Assessment is worth 20% for both AQA (7517) and OCR (H446). It is a substantial programmed solution with an accompanying report covering analysis, design, development, testing, and evaluation. We help you scope, structure, and evidence it to hit the top mark band — while keeping it entirely your own work, as the exam board requires.
What is the difference between the AQA and OCR A-Levels?
AQA (7517) includes an on-screen programming exam (Paper 1) with a pre-released Skeleton Program, while OCR (H446) assesses programming only in writing across two theory papers. OCR places more weight on written algorithm design and computational methods. We match you with a tutor who specialises in your exact specification.
Do I need A-Level Maths to study Computer Science?
It is not compulsory but is highly recommended, and many top universities expect it for a Computer Science degree. There is meaningful mathematical content — Boolean algebra, complexity, number systems, and logic. If you are not taking Maths, we can shore up the specific mathematical skills the A-Level requires.
Can you help students who are strong at coding but weak on theory (or vice versa)?
Absolutely — that imbalance is the single most common issue we see. We diagnose which side is holding your grade back and focus there, whether that means translating theory into working code, or teaching confident programmers how to write the precise, mark-scheme-friendly answers the theory papers reward.
Explore the curriculum
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