Revision · A Level 9618 · Paper 3
Paper 3, by topic
My Paper 3 notes, and the past-paper questions sorted by subtopic with their mark scheme. Pick a subtopic, read the notes, try the questions, then check your answers. It all opens on screen, on a phone or a laptop.
Past papers from June 2021 to June 2026292 questions · 1,725 marks
- subtopics, chapters 13 to 20
- 16
- sections of linked notes
- 165
- pages of past-paper questions
- 277
- pages of mark scheme
- 284
- 1 ReadThe notes for the subtopic, linked idea by idea.
- 2 TryThe past-paper questions on that subtopic only.
- 3 CheckThe mark scheme, once you have written your answers.
Search the questions
Type a word or a sentence. You get the past-paper questions that use all of your words, from every subtopic, June 2021 to June 2026. Each one opens on the page where it starts.
Try
Chapter13
Data Representation
- 13.1User-defined data typesWhy programmers build their own data types, and how to define them in pseudocode.
- 13.2File organisation and accessHow records are stored in a file, and how a program finds them again.
- 13.3Floating-point numbers, representation and manipulationHow real numbers are stored in binary as a mantissa and an exponent.
Chapter14
Chapter15
Chapter16
Chapter17
Chapter18
Artificial Intelligence (AI)
- 18.1Artificial Intelligence: Graphs, Dijkstra and A*How graphs help an AI find the best route, using Dijkstra's algorithm and A* search.
- 18.2Artificial Intelligence: Machine Learning and Neural NetworksHow machines learn from data, and the methods behind it.
Section 18 is one subtopic in the syllabus (18.1). It is split in two here to match the topical booklets: graphs and search, then machine learning.
Chapter19