Binary and Hexadecimal Number Systems | Cambridge IGCSE Computer Science 0984 | Full Lesson Pack

A COMPLETE 60-minute lesson pack for Cambridge IGCSE (9-1) Computer Science (Syllabus 0984) - covering Binary and Hexadecimal Number Systems, fully aligned to the Data Representation topic. Designed for beginners; no prior knowledge required.

Everything you need for a fully-resourced, exam-ready lesson:

PowerPoint Presentation (15 slides)
• Modern Slate & Amber design - clean, professional, no clip art
• Full lesson flow: Starter → Objectives → 4 concept slides → Worked examples → Guided practice → Independent practice → Extension → Misconceptions → Exit ticket

Summary
• Aligned to 0984 Paper 1 command words: state, define, convert, explain

Student Worksheet (13 questions, 6 pages)
• Sections A–D: binary↔denary, hex conversions, real-world application
• Built-in 8-bit place value reference table
• Answer space scaled to mark allocation (paragraph border lines, not underscores)
• Clean page breaks — every section starts fresh, no orphaned questions
• Extension: ASCII decoder challenge

Full Answers & Mark Scheme (5 pages)
• Fully worked solutions with shaded working boxes
• M / A / B mark labelling matching IGCSE conventions
• Presented in teacher-friendly format with green answer highlighting

Exam-Style Practice Paper (10 pages, 22 marks, 30 minutes)
• 5 structured Paper 1 questions with IGCSE command words
• Mark scheme on a dedicated page — never mixed with student paper
• Covers: definitions, hex tables, binary↔denary, binary↔hex, memory addresses, HTML colour codes

LEARNING OBJECTIVES (aligned to 0984 syllabus)
• Explain why computers use binary (transistor states)
• Convert between denary and binary (8-bit)
• Describe the hexadecimal system and its symbols (0–9, A–F)
• Convert between binary and hexadecimal using the nibble method
• Explain why hexadecimal is used in practice

SUITABLE FOR
• Cambridge IGCSE (9-1) Computer Science — Syllabus 0984
• Cambridge IGCSE Computer Science — Syllabus 0478 (fully compatible)
• AQA / OCR / Edexcel GCSE Computer Science (number systems topic)
• Ages 14–16 · KS4 · Difficulty: Easy (no prerequisites)

binary, hexadecimal, number systems, Cambridge IGCSE Computer Science,
0984, data representation, denary, base conversion, nibble, byte,
GCSE computing, hex to binary, binary to denary, place value, IGCSE 0478