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Red, Blue, Yellow

Sort coloured circles on screen into the right data buckets.

How computers do this

Sorting colour data into buckets is how a computer organises information by type.

Class 1 to 2beginner10 min2 lessons1 interactive lab
By the end you will be able to
  • Name red, blue and yellow colour data
  • Drop each colour into its bucket on screen
  • Check bucket labels like a sorting algorithm

Finish first

Computer play 1 of 2

Three colours

Computer lab
Colour bucketsTap a circle, then tap its matching bucket.

Tap a circle, then tap its bucket.

Grown-up note (read aloud)

Red, blue and yellow are three kinds of colour data on screen. Three buckets, three groups for the computer to sort.

  • Three colour groups on screen
  • Each colour data has a home bucket
Next

Computer play 2 of 2

Drag and drop

Grown-up note (read aloud)

Move each circle to the bucket that matches its colour data. Wrong bucket? Try again. That is sorting on screen.

  • Match colour data to bucket
  • Sorting fixes mistakes
Next

Practice

Try at home

No answer key here on purpose: these are the questions worth thinking through before you move on. Open one and work it out.

0/2 attempted

Picture check

Tap your answer

Pick the picture that answers the question. A grown-up can read the words.

0/4
  1. Question 1: 🔴 goes in…
    Question 1 / 4

    🔴 goes in…

    Select an option first
  2. Question 2: 🟡 is the colour of…
    Question 2 / 4

    🟡 is the colour of…

    Select an option first
  3. Question 3: 🔵 Blue circle in wrong bucket?
    Question 3 / 4

    🔵 Blue circle in wrong bucket?

    Select an option first
  4. Question 4: Sorting colours on screen helps you…
    Question 4 / 4

    Sorting colours on screen helps you…

    Select an option first
4 of 4 questions left.

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