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*.
88%
reach Grade A or above
+1.7
average grade improvement
10+
years average tutor experience
Free
first lesson, no commitment
Specialist tutors with board knowledge, strong academic backgrounds, and proven grade-improvement records.
AQA Senior ExaminerDr Priya Nair
Cambridge PhD Computer Science · AQA Examiner
A-Level Computer Science (AQA & OCR), IGCSE Computer Science
Avg +1.8 grade improvement
NEA & Programming SpecialistMr Daniel Okoye
Imperial MEng Computing · Software Engineer
A-Level Computer Science OCR, Python & Java programming
91% of students reach Grade A+
Theory & Algorithms SpecialistMs Hannah Clarke
Oxford MSc Computer Science · Former Head of CS
A-Level Computer Science (all boards), theory of computation
Big-O and computation specialist
Tell us about your child and we'll match a specialist A-Level Computer Science tutor within 24 hours.
Degree-level subject specialists, many PGCE-trained, who teach to the UK exam standard.
Tutors who know the mark schemes and coach the exact phrasing that earns every mark.
Every tutor is interviewed, reference-checked, and background-verified before their first lesson.
You are paired with a specialist in your exact board and tier — never a generalist.
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
We start with recent marks, confidence blockers, and the exact exam board so sessions feel personal from lesson one.
Step 2
Tutors connect concepts to examiner language, worked examples, and the habits that turn knowledge into marks.
Step 3
Parents see what changed after each session: topics covered, next steps, and the grade trajectory we are building toward.
Data 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.
Stacks, queues, linked lists, trees, graphs and hash tables, plus searching (linear, binary), sorting (bubble, merge, quick), and graph/tree traversal algorithms.
Decomposition, abstraction, pattern recognition, and problem-solving — including thinking ahead, procedurally, logically, and concurrently as tested in the written papers.
Binary, hexadecimal, two's complement, floating point, normalisation, character sets, bitwise operations, and compression, encryption and hashing.
The CPU and fetch-execute cycle, Von Neumann architecture, registers, addressing modes, assembly language (Little Man Computer / LMC), and system software.
The TCP/IP stack, network topologies, protocols, client-server and web technologies, SQL, relational database design, normalisation, and transaction processing.
Big-O complexity, finite state machines, regular expressions, Reverse Polish Notation, Turing machines, and the limits of computation — a major discriminator at A*.
Ethical, legal, cultural, and environmental impacts of technology — the extended-response morality and law questions that many students under-prepare for.
Data 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.
Stacks, queues, linked lists, trees, graphs and hash tables, plus searching (linear, binary), sorting (bubble, merge, quick), and graph/tree traversal algorithms.
Decomposition, abstraction, pattern recognition, and problem-solving — including thinking ahead, procedurally, logically, and concurrently as tested in the written papers.
Binary, hexadecimal, two's complement, floating point, normalisation, character sets, bitwise operations, and compression, encryption and hashing.
The CPU and fetch-execute cycle, Von Neumann architecture, registers, addressing modes, assembly language (Little Man Computer / LMC), and system software.
The TCP/IP stack, network topologies, protocols, client-server and web technologies, SQL, relational database design, normalisation, and transaction processing.
Big-O complexity, finite state machines, regular expressions, Reverse Polish Notation, Turing machines, and the limits of computation — a major discriminator at A*.
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
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.
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.
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.
June 2026
My daughter could code but froze on the written theory paper. Her tutor drilled the exact mark-scheme phrasing for the extended questions and her Paper 1 mark j...
June 2026
The NEA was overwhelming until my tutor helped me scope a project that fit the top band. We built it session by session and my analysis and testing write-ups we...
June 2026
Big-O and finite state machines made no sense to me. After a handful of sessions with concrete examples it finally clicked, and those were the marks that took m...
June 2026
My daughter was struggling with IB Mathematics HL and had almost given up hope of getting a 7. After just two months of weekly sessions with her ComboTutors tut...
June 2026
My son started tutoring for A-Level Physics about three months before his exams. His tutor was incredibly patient and broke down complex topics like electromagn...
June 2026
We needed help with GCSE Science for my son who found chemistry particularly challenging. His tutor made the sessions engaging and relatable—using real-world ex...
Join 3,000+ families
Book your free trial today.
Families usually want three things: a tutor their child respects, a plan that fits the real paper, and updates that make progress easy to follow.
We shortlist tutors who know the curriculum, teach clearly, and can coach the exact exam habits that lift marks.
Top-university academics and exam-savvy specialists.
Parents see what was covered, what improved, and what needs attention next, so progress never feels vague.
Structured feedback after every lesson block.
Sessions are matched to the student's board, tier, topic gaps, and exam timeline instead of generic subject tutoring.
Board-specific support with a measurable target grade path.
Ready to close the gaps? Start with a free demo.
Book Free DemoA-Level FAQ
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.
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.
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.
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.
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.
Every exam board, every tier. No hidden fees and no long contracts — start with a free trial lesson.
Book a free consultation and we will match you with a specialist A-Level Computer Science tutor who can make a real difference.
