Coding Lesson SMALL BASIC– Sequence, Selection, Loops & Variables (Perfect for KS3 / KS4

Rock, Paper, Scissors Coding Lesson – Sequence, Selection, Loops & Variables (KS3/KS4 Python)

Bring core programming concepts to life with this engaging Rock, Paper, Scissors Python project! Designed for KS3 and KS4 Computer Science, this lesson guides students step-by-step through building a fully working game while learning sequence, selection, iteration, variables, and sub-functions.

This is the perfect lesson for classes who need a clear, practical introduction to structured programming — or a fun consolidation activity that reinforces previous learning.

What students will learn:

• Understand and apply sequence to structure programs logically
• Use selection (IF/ELIF/ELSE) to compare choices and decide the winner
• Implement loops to repeat the game and add replay options
• Create and manipulate variables
• Build sub-functions to organise code and reduce repetition
• Work with user input and simple validation
• Test and debug their code throughout the lesson

What’s included:

• Teacher version with explanations
• Student worksheet (guided or independent)
• Example completed Python program
• Clear modelling steps for each stage of the game
• Extension challenges (scoreboard, best-of-three, add “lizard & Spock”)
• Printable or digital-friendly Word/PDF files
• Designed to be completed in one lesson (or extended to two)

Why teachers love this resource:

• Perfect for teaching Sequence → Selection → Iteration in a meaningful project
• Highly accessible and easy to differentiate
• Works in all Python environments (IDLE, Replit, Thonny, VS Code)
• Students finish with a complete mini-project they are proud of
• Ideal for lessons, cover work, homework, or revision

Suitable for:

• KS3 Computer Science
• KS4 OCR J277 / AQA / Edexcel preparation
• Coding clubs
• End-of-unit project lessons
• Homework and revision tasks