Computer explorers · 13/50 · Ages 8–10
A loop in the garden
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Fox waters three pretend plants. The same action repeats. A loop lets a program say how many times to repeat a set of instructions.
What you will discover
- A loop repeats instructions.
- Count the repetitions so the loop does the intended amount of work.
English vocabulary
- loop
- vòng lặp
- repeat
- lặp lại
Let’s play
A robot makes 2 hops in each round. It repeats 3 rounds. How many hops?
See the explanation
Two hops repeated three times gives 2 + 2 + 2 = 6.
Practise touch typing
Place your hands on F and J and type this sentence using ten fingers.
A loop repeats a useful step.
Two little quiz questions
1. What does a loop do?
- Repeats instructions
- Deletes the keyboard
- Makes every answer true
Answer and explanation
Repeats instructions. Loops help with repeated work.
2. Repeat move once, four times. How many moves?
- 1
- 4
- 8
Answer and explanation
4. One move per repetition gives four moves.