lesson

Say exactly what to do

Read with an adult. You can say, point, draw or write your answer.

1 · Learn

An algorithm is a set of steps for doing a task. The order matters. A device needs instructions it can follow; it cannot guess your plan.

'Go over there' is not clear enough for our pretend robot. 'Move forward one square' tells it an amount and a direction relative to the way it faces.

Start positionFacing directionOne clear step at a time
Key words and supplied examples.

2 · Worked example

I say 'Move forward two squares' after agreeing what forward and a square mean. My partner can follow the instruction without guessing.

3 · Your turn

Which is clearer for a robot: 'Move a bit' or 'Move forward one square'?

Check your answer

Move forward one square. It gives a precise movement.

4 · Apply your learning

On paper, agree a start square and facing direction. Give a partner clear steps to move a counter to a target.

Adult guidance and safety

Work with an adult in an approved offline or school-managed tool. Use pretend information, never real passwords or personal details. Paper activities model ideas but must be followed by suitable hands-on device practice.

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