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IB Computer Science
Expert 1-on-1 IB Computer Science tutoring for HL and SL. Build pseudocode fluency, master data structures and OOP, and reach Grade 6 or 7.
- Matched to IB Computer Science HL and IB Computer Science SL
- 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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Tutors Chosen for Subject Fit, Teaching Fit and Course Fit
Knowledge beyond the textbook
Strong subject understanding supports demanding school and exam content.
Teaching linked to assessment
Specification points, mark schemes and exam-style questions shape preparation.
Reviewed by Combo Tutors Academy
Selection includes interviews, demonstrations and suitability checks.
Matched to the exact course
AQA, Pearson Edexcel, OCR and Cambridge students get relevant support.
From Confusion To Calm, One Lesson At A Time.
Our tutors build the computational thinking and precise technical language that are both required for Grade 6–7 in IB Computer Science — writing working code alone is not enough for the written papers.
Step 1
Pinpoint the gaps
We start with recent marks, confidence blockers, and the exact exam board so sessions feel personal from lesson one.
Step 2
Teach the mark scheme
Tutors connect concepts to examiner language, worked examples, and the habits that turn knowledge into marks.
Step 3
Track the lift
Parents see what changed after each session: topics covered, next steps, and the grade trajectory we are building toward.
What we cover
A Syllabus Map Students Can Actually Follow.
Break the specification into manageable topics, then build confidence from the first concept to exam-ready application.
System Fundamentals
Start hereSystems in organisations, the systems development life cycle, deployment, change management, and human interaction with computers. A common source of easy marks lost through vague, non-technical answers on Paper 1.
Computer Organisation
The CPU and its components, primary and secondary memory, binary and hexadecimal representation, logic gates and simplified truth tables, and how an operating system manages resources.
Networks
Network types and topologies, the OSI layers, protocols and data packets, wireless networking, VPNs, and the trade-offs of security, speed, and reliability. Students must justify choices, not just describe them.
Computational Thinking & Problem-Solving
Thinking abstractly, ahead, procedurally and logically; flowcharts and pseudocode; standard algorithms including linear and binary search, bubble sort, and selection sort; and tracing algorithms by hand.
Object-Oriented Programming (Paper 2 Option D)
Classes, objects, encapsulation, inheritance and polymorphism, UML diagrams, and reading and writing Java. The most popular option, examined through code-based scenarios.
Abstract Data Structures (HL)
Static and dynamic structures, stacks, queues, singly and doubly linked lists, binary trees with traversals, recursion, and the reasoning behind choosing one structure over another.
Resource Management & Control (HL)
How operating systems manage limited resources, virtual memory, scheduling and dispatching, plus control systems, feedback, and the role of sensors, transducers, and microprocessors.
Internal Assessment (Solution)
A developed computational solution worth 20% of the final grade. We support the full cycle: consulting a real client, planning, designing and structuring the code, testing, and writing the criterion-referenced documentation and video.
See this plan built around your child's exact paper.
Book Free Demo+1.7
average grade improvement
Where Students Struggle And How We Fix It.
1Writing code versus answering the written papers+
Strong programmers often underperform on Papers 1 and 2 because the marks reward precise terminology, justified choices, and correctly traced pseudocode — not just a working program. We drill exam-style questions against the mark scheme so students learn to explain, justify, and construct answers in the language the examiners reward.
2The Internal Assessment and its criteria+
The IA is a demanding, client-driven project marked against five strict criteria. Students lose marks through weak client consultation, thin design documentation, or untested code. We help scope a realistically ambitious solution, keep the documentation criterion-focused from the start, and structure the code so it demonstrates the required techniques.
3Tracing algorithms and abstract data structures+
HL students frequently stumble on hand-tracing recursion, linked lists, and tree traversals under exam conditions. We teach a consistent trace-table method and build intuition for stacks, queues, and trees so that dry-running code and constructing standard algorithms become reliable, repeatable marks.
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.
Handpicked tutors
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.
Clear weekly updates
Parents see what was covered, what improved, and what needs attention next, so progress never feels vague.
Structured feedback after every lesson block.
A plan built around your child's paper
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.
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 IB Computer Science
Helpful answers about exam boards, syllabus topics, tutor matching and lesson support.
Is IB Computer Science HL harder than A-Level Computer Science?
They are broadly comparable. IB Computer Science HL adds abstract data structures, resource management and control, an annually changing case study, and a heavier Internal Assessment. A-Level Computer Science goes deeper into a single programming project and theory. Both reward precise terminology and computational thinking as much as coding ability.
Which programming language and option do you teach?
Most schools take Option D (Object-Oriented Programming), examined through Java, and that is our most-requested area. We also support the other options and the pseudocode used across Papers 1 and 2. Tell us which option and language your school follows and we will match a specialist tutor.
Can you help with the Internal Assessment?
Yes. The IA is worth 20% of the final grade and is marked against five criteria. We guide the whole process — client consultation, planning, design, developing and testing the solution, and the criterion-referenced documentation and screencast — while keeping the work fully your own for academic honesty.
How is the HL case study examined?
Paper 3 at HL is based on a case study released by the IB each year on a specific topic. It rewards wider reading and applied understanding rather than recall. We help students research the case study, learn the relevant terminology, and practise structured extended responses against past mark schemes.
When should I start IB Computer Science tutoring?
Starting in Year 1 (Grade 11) is ideal — solid foundations in computational thinking, computer organisation, and programming make Year 2 and the IA far more manageable. Students who begin in the final semester can still make strong gains with focused exam-technique and past-paper practice.
Explore the curriculum
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