CAMBRIDGE 2210 · 2026–2028

O Level Computer Science

For O Level students starting Computer Science or revisiting difficult topics. Connect theory to worked problems and practise explaining your reasoning.

Book a free intro call Explore the sessions

Online one-to-one · With Haseeb Zaheer · Urdu + English

01 / WHAT WE CAN WORK ON

Understand it.
Then put it to work.

Understand the systems

Build clear explanations of computer systems for Paper 1.

Binary, hexadecimal and data representation
Data transmission, hardware and software
The internet, security and emerging technologies

Turn a problem into a solution

Practise algorithms, programming and logic using Paper 2’s required pseudocode conventions.

Decomposition, algorithm design and trace tables
Programming constructs, testing and validation
Databases, SQL and Boolean logic

02 / A SMALL EXAMPLE

See the reasoning.
Have a go yourself.

Original learning examples by Haseeb. These are not official exam questions.

What does 00101010 mean?

Learning outcome: convert an unsigned eight-bit binary number to denary by using place values.

Your turn: convert 00010101 to denary. Explain which place values you used.

Read the worked solution

From left to right, the place values are 128, 64, 32, 16, 8, 4, 2, 1.
In 00101010, the bits for 32, 8 and 2 are on.
Add those values: 32 + 8 + 2 = 42. Zero bits contribute nothing.

Reveal practice answer

16 + 4 + 1 = 21.

03 / HOW WE’LL LEARN

A starting point.
A clear next step.

Bring your syllabus code, exam session and a question you found difficult. Work from an explanation through a worked example to independent practice and feedback, using Cambridge’s required notation for exam answers.

04 / BEFORE WE START

Your questions,
answered.

Which exam series are you preparing students for?

The initial focus is May/June 2027, using the 2210 syllabus for 2026–2028. We confirm your board, year and syllabus before tailoring tuition.

Can I write all exam answers in Python?

No. In Paper 2, coding solutions generally require pseudocode. The 15-mark scenario question allows pseudocode or Python, Visual Basic or Java under this syllabus. We practise the correct form for each question.

Do I need programming experience?

You can start with the foundations. In the intro call we’ll identify what you already know and agree a suitable starting point.

Official references

O Level Computer Science tuition

Let’s make
your next step clear.

Message me on WhatsApp or book a free 30-minute intro call. Tell me where you are, what feels difficult, and what you’re working towards.

One-to-one online sessions Tuition & practical mentoring

Book a free intro call30 minutes · Free introductory call

OR CHAT DIRECTLY

Chat on WhatsApp

Questions about lessons? Message me directly.