A Level OCR


Unit 10: Computational thinking

Component 02



This unit is FREE. You can order it via our online ordering system. No purchase order number is necessary.

The unit is subdivided into six topics and an end-of-unit assessment. Each topic may be spread over more than one lesson, especially if time is spent in the lessons going over homework tasks.

It is a theoretical unit covering the OCR Computer Science specification Section 2.2.1 Elements of Computational Thinking and Section 2.2.2 Computational methods.  It describes what is meant by “computational thinking” in its many forms and is designed to develop this skill with the aid of many practical examples related to problem recognition and decomposition, abstraction and algorithm design.  It covers the topics of backtracking, data mining, heuristics, performance modelling, pipelining and visualisation.


What's included?

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...

Your resources are head and shoulders above the rest.

Kieren Reynolds. CAS Master teacher and teacher, Henry Beaufort School

Whenever I have dealt with PG Online the customer service has been second to none. Thank you. 

Sam Moses. Teacher, Tibshelf Community School

Relevant Text Books

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: Thinking abstractly
    • Topic 2: Thinking ahead
    • Topic 3: Thinking procedurally
    • Topic 4: Thinking logically, thinking concurrently
    • Topic 5: Problem recognition
    • Topic 6: Problem solving
    • End of unit assessment

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

  • How to order

    1. Add individual units to a draft order or download a blank order form below to complete manually
    2. Using a draft order you can either:
    a) Create a PDF
    (to fax or email at a later date)
    b) Save your order online
    (registration or log in required)
    c) Email us your complete order
    (registration or log in required)

    Download blank order form



  • Pricing and Discounts

    • Lifetime site licence for:
    • 1 KS3 unit £120 + VAT
    • GCSE & IGCSE units are individually priced
    • A Level units are individually priced
    • Discount for 2-5 units 10%
    • Discount for 6-11 units 15%
    • Discount for 12 or more units 20%
    • There are no annual renewal fees.