Python Hub - Master CIE A-Level 9618 Python Programming

Learning Modules

All 32 Paper 4 topics, organised into 6 modules that follow the Cambridge 9618 A-Level syllabus order — from Python foundations through to declarative programming.

Python Foundations

The core language every Paper 4 candidate must master first.

11 topics

Introduction

What Paper 4 is, how it is marked, and the languages you may use.

beginner

Selection & Operators

Input, output, selection (IF/CASE) and operators — arithmetic, comparison, logical, //, %.

beginner

Iteration

Repeating code with FOR, WHILE and condition-controlled loops.

beginner

Lists

Create, access, modify and loop through lists (the Python array).

beginner

Functions

Modular programming — defining, calling and returning values.

beginner

Local & Global Variables

Variable scope: where a variable lives and why it matters.

beginner

String Manipulation

Slicing, searching and building strings from text data.

intermediate

Text Files

Open, read, write and append to text files safely.

intermediate

2D Arrays

Two-dimensional lists and how to loop through rows and columns.

intermediate

#10

Random Files

Fixed-length records and direct (random) access to file data.

advanced

#11

Exception Handling

Catching and handling run-time errors so a program does not crash.

intermediate

Searching, Sorting & Hashing

The classic algorithms Cambridge expects you to trace, write and explain.

5 topics

#12

Linear Search

Check each item in turn until the target is found.

intermediate

#13

Binary Search

Halve a sorted list each step for fast searching.

advanced

#14

Bubble Sort

Compare and swap neighbours until the list is in order.

intermediate

#15

Insertion Sort

Build a sorted list one item at a time.

intermediate

#16

Hashing

Map keys to addresses for near-instant data retrieval.

advanced

Abstract Data Types (Array-Based)

The core ADTs, built with arrays and pointers before moving to objects.

3 topics

#17

Stack

A Last-In-First-Out (LIFO) structure built on an array.

advanced

#18

Queue

A First-In-First-Out (FIFO) structure built on an array.

advanced

#19

Linked List

Nodes joined by pointers, simulated with parallel arrays.

advanced

Programming with Objects

Classes, objects, encapsulation and inheritance — worked through step by step.

6 topics

#20

OOP Classes

Part 1 — classes, attributes, methods and creating objects.

intermediate

#21

OOP Encapsulation

Part 2 — private attributes with getter and setter methods.

advanced

#22

OOP Containment

Composition — one object holding other objects.

advanced

#23

OOP Files and Array

Part 3 — combining text files with an array of objects.

advanced

#24

OOP Inheritance

Part 4 — reusing and extending class behaviour.

advanced

#25

OOP Pseudocode

Part 5 — writing object-oriented designs in Cambridge pseudocode.

advanced

Abstract Data Types Using OOP

The same data structures rebuilt with classes and node objects.

5 topics

#26

ADT Stack

A stack implemented with classes and objects.

advanced

#27

ADT Queue

A queue implemented with classes and objects.

advanced

#28

ADT Linked List

A linked list built from node objects and references.

advanced

#29

ADT Binary Tree

A hierarchical structure for fast searching and ordering.

advanced

#30

ADT Dictionary

Key–value storage for quick lookups and flexible data.

advanced

Further Programming

The advanced techniques and paradigms that finish the A2 syllabus.

2 topics

#31

Recursion

Functions that call themselves to solve a problem in smaller steps.

advanced

#32

Declarative Programming

Describing what to solve rather than how to solve it.

advanced

Master Pythonfor Your A-Level Exams

Learning Modules

Python Foundations

Introduction

Selection & Operators

Iteration

Lists

Functions

Local & Global Variables

String Manipulation

Text Files

2D Arrays

Random Files

Exception Handling

Searching, Sorting & Hashing

Linear Search

Binary Search

Bubble Sort

Insertion Sort

Hashing

Abstract Data Types (Array-Based)

Stack

Queue

Linked List

Programming with Objects

OOP Classes

OOP Encapsulation

OOP Containment

OOP Files and Array

OOP Inheritance

OOP Pseudocode

Abstract Data Types Using OOP

ADT Stack

ADT Queue

ADT Linked List

ADT Binary Tree

ADT Dictionary

Further Programming

Recursion

Declarative Programming

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