Algorithms (2/2)
Computing: Year 5 & 6 National Curriculum, topic 3.1.4
Algorithms
Repetition
- Repetition means doing the same step over again.
- The step can be repeated with different variables.
- A variable is something that can change.
Repetition: example
- The toppings must be placed on the cakes.
- The step is repeated for each cake (repetition).
- But the type of topping can change each time (variable).
Repeat until...
- Sometimes a step can be repeated until something happens.
- Then we can move to the next step.
- A step is repeated until something happens.
- This step is called a ‘repeat until’ instruction.
Repeat until: example
- Put cake batter in each paper case.
- Repeat until all the cases are filled
- Then stop and go to the next step.
Test yourself on Algorithms (2/2)
What is a variable?
What does a 'repeat until' instruction do?
What do you call it when you change the cupcake topping each time?
What does repetition mean in computing?