3.3 Data Representation Unit of Work AQA GCSE Computer Science

This comprehensive 6-lesson unit covers Data Representation for GCSE Computer Science, fully aligned with the AQA specification. It’s designed to save planning time while engaging students with hands-on activities, assessments, and coding tasks.

What’s Included

6 Detailed Lessons with Activities:

1. Number Systems – Understanding binary, decimal, and hexadecimal
2. Binary Arithmetic – Addition, subtraction, and overflow
3. Character Encoding – ASCII, Unicode, and practical examples
4. Data Capacity – Bits, bytes, and storage calculations
5. Images – Bitmap representation and pixel art activities
6. Sound – Sampling, bit depth, and audio representation

Additional Resources:

7-bit ASCII Table – Ready reference for encoding activities
Pixel Art Worksheet – Includes Python Turtle programming exercises
Challenge Booklet – Covers all sub-topics with 60 tasks and answers
Formative Assessment – Includes questions and answers to track student progress

Why This Resource Works:

Fully structured and ready-to-teach
Combines theory, practical tasks, and coding
Supports differentiation with extension challenges
Includes answers for easy marking and self-assessment
Ideal for KS4 / GCSE Computer Science classes

Perfect For:

Teaching Data Representation across multiple lessons
Revision, catch-up sessions, or cover lessons
Students who benefit from visual, hands-on, and coding activities

Save planning time and deliver a complete, engaging unit on Data Representation that your students will enjoy while building key exam skills.