Worked Examples

Step-by-step solutions showing how to approach common exam questions and problems. Follow along to learn the process, not just the answer.

Study Tip: Before looking at the solution, try solving the problem yourself first. Then compare your approach with the worked example to identify any gaps in your understanding.

Algorithms & Programming

Writing a Linear Search Algorithm

Step-by-step guide to creating a linear search in pseudocode

Calculating with Loops

Using FOR and WHILE loops for calculations like sums and averages

Nested IF Statements

Building grade calculators and multi-condition logic

Spreadsheets

VLOOKUP Step-by-Step

Complete walkthrough of setting up and using VLOOKUP

Nested IF Functions

Creating grade boundaries with nested IF statements

Databases

Designing a Database Schema

From requirements to normalised tables with relationships

Context Diagrams

Drawing a Context Diagram

Complete example of creating a context diagram from a scenario

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