Y6 Glossary topic 3.1-3.4

It sets out what the program has to do.

Answer explanation

Here is an example of a requirement:

Calculate a total by adding ten numbers input by the user.

The set of steps needed to solve a problem.

Answer explanation

The algorithm looks like this:

Set total to 0

Loop these commands 10 times

Input number

Add number to total 

Output the total

A loop in which you know beforehand how many times it will be repeated.

The order of commands in the algorithm.

It means a program is used a second time.

It means making some changes to a program so it does a new thing.

Worked out by calculating the total of a series of values and dividing by the number of values in the series:

total / number of values