Teaching article
A loop repeats the whole block inside it
Replace an exactly repeated command block with a stated repeat count.
Bracket the command group before adding a repeat count. Expanding the loop back into individual commands lets children check whether they repeated the intended sequence or only its most noticeable step.
Repeat 'forward, turn right' four times contains four copies of that block.
Expand the shorthand to verify it
Mark the boundaries of the repeated block clearly. A reader needs to know which commands belong inside the repetition.
Identify a repeated block. Set its count. Expand to check.
A loop repeats the whole enclosed block.
Does expansion match the original? Use two repeats first.
Resources
- Human Robot Commands – Coding Without Screens Printable Game — Check the command conventions before using the sequence or debugging task.
Further reading
- CS Unplugged — Kidbots and algorithm activities
- Australian Curriculum Version 9 — Technologies overview
Read next
- Repeat three means three executions in this notation
- A symbol message is readable only with its key
- Five squares can require only four moves
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