Mrs Angela Foster, parent
June 2026
My daughter could code well but kept losing marks writing programs on paper. Her tutor drilled handwritten Python and trace tables every week. She went from a G...

Expert 1-on-1 GCSE Computer Science tutoring from qualified UK tutors for AQA, OCR, and Edexcel. Master programming, algorithms, and computer systems to reach Grade 7, 8, or 9.
87%
reach Grade 7 or above
+2.0
average grade improvement
9+
years average tutor experience
Free
first lesson, no commitment
Specialist tutors with board knowledge, strong academic backgrounds, and proven grade-improvement records.
AQA ExaminerDr Priya Nair
Cambridge PhD Computer Science · AQA Examiner
GCSE Computer Science (AQA, OCR, Edexcel), A-Level Computer Science
Avg +2.2 grade improvement
10+ Years TeachingMr James Whitfield
Imperial MEng Computing · Former Software Engineer
GCSE and A-Level Computer Science, all exam boards
90% of students reach Grade 7+
OCR SpecialistMs Chloe Bennett
Manchester BSc Computer Science · Head of Computing
GCSE Computer Science (OCR, Edexcel), KS3 Computing
88% of students reach Grade 7+
Tell us about your child and we'll match a specialist GCSE 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 programming fluency and theory confidence together — the combination that unlocks the higher grades in Computer Science, where a strong coder can still lose marks on systems theory.
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.
Variables, data types, sequence, selection and iteration, arrays, string manipulation, and subroutines (procedures and functions) — the core skills tested across every board's programming paper.
Decomposition, abstraction, searching algorithms (linear and binary), sorting algorithms (bubble, merge, insertion), and interpreting flowcharts and pseudocode — a heavily weighted, mark-rich section.
Binary and hexadecimal, binary arithmetic and shifts, character sets (ASCII and Unicode), and how images, sound, and text are represented and compressed — a topic full of predictable calculation marks.
The CPU, the fetch-decode-execute cycle, registers, the role of the ALU and control unit, RAM and ROM, cache, and the impact of clock speed, cores, and cache on performance.
LANs and WANs, network topologies, the TCP/IP and OSI models, protocols (HTTP, HTTPS, FTP, SMTP), IP and MAC addressing, and packet switching.
Malware, phishing, social engineering, SQL injection, brute-force attacks, and the defences against them including encryption, firewalls, penetration testing, and access control.
AND, OR and NOT gates, drawing and interpreting logic circuit diagrams, completing truth tables, and simplifying Boolean expressions — a self-contained section students can master quickly.
Data protection and computer misuse legislation, privacy, digital divide, e-waste, and the ethical implications of technology — the extended-answer questions that reward structured evaluation.
Variables, data types, sequence, selection and iteration, arrays, string manipulation, and subroutines (procedures and functions) — the core skills tested across every board's programming paper.
Decomposition, abstraction, searching algorithms (linear and binary), sorting algorithms (bubble, merge, insertion), and interpreting flowcharts and pseudocode — a heavily weighted, mark-rich section.
Binary and hexadecimal, binary arithmetic and shifts, character sets (ASCII and Unicode), and how images, sound, and text are represented and compressed — a topic full of predictable calculation marks.
The CPU, the fetch-decode-execute cycle, registers, the role of the ALU and control unit, RAM and ROM, cache, and the impact of clock speed, cores, and cache on performance.
LANs and WANs, network topologies, the TCP/IP and OSI models, protocols (HTTP, HTTPS, FTP, SMTP), IP and MAC addressing, and packet switching.
Malware, phishing, social engineering, SQL injection, brute-force attacks, and the defences against them including encryption, firewalls, penetration testing, and access control.
AND, OR and NOT gates, drawing and interpreting logic circuit diagrams, completing truth tables, and simplifying Boolean expressions — a self-contained section students can master quickly.
Data protection and computer misuse legislation, privacy, digital divide, e-waste, and the ethical implications of technology — the extended-answer questions that reward structured evaluation.
See this plan built around your child's exact paper.
Book Free Demo+2.0
average grade improvement
Many students can code with an IDE but struggle to write syntactically correct programs on paper. We drill trace tables, dry-running, and handwritten code using each board's reference language until students can write and check a working solution without a computer.
Questions on binary search, merge sort, and bubble sort often ask students to explain or complete an algorithm, not just run it. We teach a step-by-step method for tracing algorithms and structuring explanations so students capture every available mark.
Conversions, binary addition, overflow, and binary shifts are guaranteed marks that students frequently drop through small errors. We build a reliable, repeatable method and practise with past-paper questions until conversions become automatic.
June 2026
My daughter could code well but kept losing marks writing programs on paper. Her tutor drilled handwritten Python and trace tables every week. She went from a G...
June 2026
Algorithms and the fetch-decode-execute cycle just clicked once my tutor walked me through them properly. The past-paper practice on OCR's exam reference langua...
June 2026
I was heading for a Grade 4 and terrified of the theory paper. The binary and networks sessions turned my weakest topics into my strongest. I finished with a Gr...

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...
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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 DemoGCSE FAQ
Most UK schools teach Python, and it is the required language for Edexcel's onscreen Paper 2. AQA and OCR let your school choose the language, so we match whatever your school uses — usually Python, but we also tutor in C# and Visual Basic if needed.
No. For AQA (8525), OCR (J277), and Edexcel (1CP2) the entire grade comes from exams — there is no coursework or non-exam assessment that counts towards your mark. Schools may still set a practical programming project for skills development, but it is not assessed.
Edexcel's Paper 2 is sat onscreen in a programming environment using Python, so students write and test real code during the exam. AQA and OCR assess programming through written questions on paper, so we tailor our preparation to the exact style of your board.
Yes — linear and binary search, plus bubble, merge, and insertion sort, are core knowledge for every board. We teach students to trace each algorithm step by step and explain how it works, which is what the higher-mark questions reward.
Absolutely — this is one of the most common patterns we see. A confident programmer can still miss Grade 8 and 9 by dropping marks on computer systems, networks, and data representation. We focus tutoring time on the theory paper to balance out the whole qualification.
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 GCSE Computer Science tutor who can make a real difference.