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KS3 & KS4 computing curriculum

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Computer Science
Year 10

Representation of numbers

6 lessons

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  • Data and information

Description

In this unit pupils will be reminded of how the base-10 number system works before being introduced to the base-2 number system. They will perform conversions between binary and decimal and recognise the rules of binary addition and subtraction. They will be introduced to hexadecimal and its uses.

This unit progresses pupils' knowledge and understanding of data representations and compression. They will develop their understanding of working with binary numbers and learn how to add and subtract binary numbers. Building upon prior understanding of number systems, pupils will be introduced to the hexadecimal number system and make comparisons between the base-16 number system and the base-2 and base-10 number systems they are already familiar with.

  1. Why do computers use binary?
  2. Number bases
  3. Binary addition
  4. Binary shifts
  5. Hexadecimal
  6. Hexadecimal number conversions
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