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GCSE Edexcel

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1CP2 Unit 2: Data

Paper 1: Principles of Computer Science

2

Inside the Unit...

Download Free Sample 5.7mb

Areas Covered

  • Lesson 1 Storage units and binary numbers
  • Lesson 2 Binary arithmetic and hexadecimal
  • Lesson 3 Binary shifts and two's complement
  • Lesson 4 ASCII
  • Lesson 5 Images
  • Download sample lesson above
  • Lesson 6 Sound
  • Lesson 7 Compression
  • Lesson 8 Assessment

There are 7 worksheets, 7 homework tasks, and an examination-style assessment test, each with answers included in this unit.

Summary

The unit is subdivided into seven learning hours plus an end-of-unit assessment spread across seven lessons. It is a theoretical unit covering Topic 2 of the 2020 Edexcel Computer Science specification 1CP2. The conversion of integers from denary to binary (including sign and magnitude and two’s complement) is covered in the first lesson. In subsequent lessons, the use of hexadecimal numbers and character encoding is described with practical programming exercises to reinforce understanding. Binary addition including logical and arithmetic binary shifts are also covered. Representation of images and sound are covered in two separate lessons with two final lessons covering lossy and lossless compression techniques and encryption. In the final lesson students sit an assessment test comprising questions similar to those found on the GCSE exam paper. 

What's included in the toolkit?

Toolkit

The GCSE units have been written to satisfy the specification for Paper 1 of the 1CP2 Edexcel Computer Science GCSE.

Each units contains:

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

What people say...

“
”

I’m so impressed with the OCR Computer Science books that’s all I now teach from. We have purchased all our students the revision booklet and the exam one!

Rob Frain. Computer Science Teacher, Lathom High School

“
”

The PowerPoints were thorough and detailed and helped my knowledge of the subject as a non specialist.

Thomas Fincham. Science teacher, Lutterworth College

Relevant Textbooks

Inside the Unit...

  • Download Free Sample 5.7mb

    Areas Covered

    • Lesson 1 Storage units and binary numbers
    • Lesson 2 Binary arithmetic and hexadecimal
    • Lesson 3 Binary shifts and two's complement
    • Lesson 4 ASCII
    • Lesson 5 Images
    • Download sample lesson above
    • Lesson 6 Sound
    • Lesson 7 Compression
    • Lesson 8 Assessment

    There are 7 worksheets, 7 homework tasks, and an examination-style assessment test, each with answers included in this unit.

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