A Level AQA

£140.00 + VAT

Unit 3: Data representation

AQA Paper 2

 
3

Inside the Unit...

Areas Covered

This unit consists of six topics, each more substantial than a single lesson and intended to be covered over the course of a week.

  • Topic 1: Number systems
  • Topic 2: Bits, bytes and binary
  • Topic 3: Binary arithmetic
  • Topic 4: Bitmapped graphics
    Download free sample below
  • Topic 5: Representation of sound
  • Topic 6: Compression and encryption algorithms
  • End of unit assessment

There are worksheets, homework tasks, and an assessment test, each with answers included in this unit.

Summary

The unit is subdivided into six topics, expected to be taught across roughly six weeks of lessons, plus a test, in order to fit with most school timetables. It is a theoretical unit covering the relevant sections of the AQA AS Level Computer Science specification. The unit is designed to allow AS students to be taught at the same time as students taking the full A Level.

Six topics in this unit cover data representation of numbers, text, images and sound, with the final topic explaining and giving examples of the uses of data compression and encryption. The beautifully illustrated PowerPoint slides, interactive style of the lesson plans, challenging and imaginative worksheets and graded examples in the homework will all help to ensure the class is fully engaged.

What's included?

The AS Level units have been written to satisfy the specification for Paper 1 and Paper 2 of the AQA 7516/7 Computer Science AS/A Level. Each unit contains:

  • PowerPoint slides for each topic
  • Detailed lesson plans
  • Learning objectives and outcomes
  • Worksheets and homework activities with answers
  • End-of-unit, exam-style assessment test with answers
  • Other material and links to online resources

What people say...

Fantastic resources! An excellent time saving strategy for lesson preparation and marking. Concepts are comprehensive and structured appropriately for pupils and teachers.

Neferti Rolluqui. Head of Computer Science, Dhahran British Grammar School, Saudi Arabia

I would like to thank you for the resources on PG Online. It has certainly saved me a lot of time and effort, especially being in a small team with a busy workload. 

Keep up with the amazing work!

Omar Salahuddin. Head of Computing, Hornsey School for Girls

Relevant Textbooks

Inside the Unit...

  • Areas Covered

    This unit consists of six topics, each more substantial than a single lesson and intended to be covered over the course of a week.

    • Topic 1: Number systems
    • Topic 2: Bits, bytes and binary
    • Topic 3: Binary arithmetic
    • Topic 4: Bitmapped graphics
      Download free sample below
    • Topic 5: Representation of sound
    • Topic 6: Compression and encryption algorithms
    • End of unit assessment

    There are worksheets, homework tasks, and an assessment test, each with answers included in this unit.

    Download Free Sample 8.4mb

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