MA
Mrs Angela Reid, parent
June 2026
Verified
7My daughter could code but kept scoring 4s on the written papers. Her tutor showed her exactly how the mark scheme is worded and how to justify design choices. ...
IB Computer Science HL · Dubai
IB specialist tutoring
IB Computer ScienceTutoring
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.
84%
reach Grade 6 or above
+1.7
average grade improvement
10+
years average tutor experience
Free
first lesson, no commitment
IB Computer Science HLIB Computer Science SLIB Computer Science HLIB Computer Science SLIB Computer Science HLIB Computer Science SL
Real specialists
Meet tutors with examiner instincts.
Specialist tutors with board knowledge, strong academic backgrounds, and proven grade-improvement records.
IB Computer Science ExaminerDr Alistair Grant
Cambridge PhD Computer Science · IB Examiner
IB Computer Science HL and SL, A-Level Computer Science (all boards)
Avg +1.8 grade improvement
OOP & Java SpecialistMs Priya Nair
Imperial MSc Computing · IB Teacher
IB Computer Science SL and HL — Option D, OOP, and algorithms
86% of students reach Grade 6+
IA & Solution SpecialistMr Lukas Bauer
TU Munich MSc Software Engineering
IB Computer Science HL and SL, Internal Assessment, data structures
Average IA score: 30/34
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Book a free demo lesson.
Tell us about your child and we'll match a specialist IB Computer Science tutor within 24 hours.
- UK-qualified specialist tutors, matched to your exact board.
- We reply within 24 hours with tutor recommendations.
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Our standard
Every tutor clears a high bar.
UK-qualified teachers
Degree-level subject specialists, many PGCE-trained, who teach to the UK exam standard.
Examiner insight
Tutors who know the mark schemes and coach the exact phrasing that earns every mark.
Vetted & background-checked
Every tutor is interviewed, reference-checked, and background-verified before their first lesson.
Matched to your board
You are paired with a specialist in your exact board and tier — never a generalist.
Lesson flow
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.
System Fundamentals
Systems 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.
System Fundamentals
Systems 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
Common blockers
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.
Proof that feels close to home.
DK
Daniel K., student
June 2026
Verified
6The Internal Assessment was overwhelming until my tutor helped me scope it around a real client and keep every section tied to the criteria. It became my strong...
IB Computer Science SL · Geneva
MV
Mr Vincent Ang, parent
June 2026
Verified
7We wanted an examiner for HL. The tutor knew exactly how abstract data structures and the case study are assessed and drilled trace tables until they were secon...
IB Computer Science HL · Hong Kong
Sarah M.
June 2026
Verified
Grade 4 → 6My 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...
Parent of IB Student · London
James P.
June 2026
Verified
B → A*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...
Parent of A-Level Student · Manchester
Priya K.
June 2026
Verified
+2 GradesWe 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...
Parent of GCSE Student · Birmingham
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Family trust
Why parents chose Combo.
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.
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.
Ready to close the gaps? Start with a free demo.
Book Free DemoIB FAQ
Common Questions.
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.
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.
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.
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.
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.
Transparent pricing
See pricingSpecialist tutoring from $15/hr.
Every exam board, every tier. No hidden fees and no long contracts — start with a free trial lesson.
Ready to Excel in IB Computer Science?
Book a free consultation and we will match you with a specialist IB Computer Science tutor who can make a real difference.