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Binary and data representation

KS3 · 25 minutes · Convert between binary and denary.

Visual learning map for Binary and data representation: observe, try, then explain. Convert between binary and denary.
Visual learning map for Binary and data representation: observe, try, then explain. Convert between binary and denary.

Answer by: Type. You can change method or take a break at any time.

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Our learning goal

Convert between binary and denary.

Your turn: Choose one thing you would like to understand by the end.

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My lesson notes & project
Full teaching script
  1. Today: Binary and data representation. Our goal: Convert between binary and denary.
  2. Take one idea at a time. Pause after each sentence; ask for repetition whenever you need it.
  3. Computers store everything as on/off. Place values double: 128 64 32 16 8 4 2 1. So 01001011 is 64+8+2+1 = 75. Text uses ASCII/Unicode numbers, images use pixel colour numbers, sound uses samples — all of it, underneath, is binary.
  4. Together: choose one example from the explanation and show how it works. What do you notice?
  5. Your turn: Convert 1010 1101 to denary, and 200 to binary.
  6. Reflect: what made sense, and what would you like explained differently?
Teacher lessons & videos

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