A Level OCR

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Unit 4: Exchanging data

Component 01

 
4

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: Compression, encryption and hashing
  • Topic 2: Database concepts
  • Download sample topic below
  • Topic 3: Relational databases and normalisation
  • Topic 4: Introduction to SQL
  • Topic 5: Defining and updating tables using SQL
  • Topic 6: Transaction processing
  • End of unit assessment

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

Summary

This unit covers Sections 1.3.1 and 1.3.2 of the 2015 H446 specification. The first lesson covers the topics of compression and encryption. This is followed by four lessons on databases and SQL, with a final lesson on transaction processing. Each of the six topics may be spread over more than one lesson, especially if time is spent in the lessons going over homework tasks. 

What's included in the toolkit?

Toolkit

The A Level units have been written to satisfy the specification for Component 1 and Component 2 of the OCR H046/H446 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...

Wow! This is certainly the most comprehensive and useful book out there for A Level OCR Computing.  I will be purchasing a class set for year 12 and 13.  

Craig Sargent. Head of Computer Science, Archway School

I'd just like to express my thanks for the material and support. If I had needed to have made my own resources, the results wouldn't have been as good and now I'm happy to tailor and tweak the resources to fit my own teaching and the student's own skills.

Paul Sloane. Head of Computer Science, Lady Manners School

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: Compression, encryption and hashing
    • Topic 2: Database concepts
    • Download sample topic below
    • Topic 3: Relational databases and normalisation
    • Topic 4: Introduction to SQL
    • Topic 5: Defining and updating tables using SQL
    • Topic 6: Transaction processing
    • End of unit assessment

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

    Download Free Sample 5.0mb

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