Algorithms and Flowcharts
Ages 16–18Difficulty adapts to you
Algorithms and Flowcharts
An algorithm is a sequence of unambiguous steps that turns inputs into outputs. Use sequence, selection, and repetition. A flowchart makes control flow visible; a trace table records changing values as the algorithm runs.
Your goals
- ✓You can write precise, finite steps and represent decisions with flowcharts and pseudocode.
- ✓You can use Algorithms and Flowcharts, model correctly.
- ✓You can use the definitions, units, assumptions, and examples to check your answer.
Words to know
- Algorithms and Flowcharts:
- Write precise, finite steps and represent decisions with flowcharts and pseudocode.
- model:
- A rule or representation used to describe a situation and make a prediction.
Examples
- 1To find the largest of three numbers, set a current maximum, compare each input, update when needed, then output the maximum.
- 2A loop must have a condition that eventually becomes false.
Check these
- • Do not skip the meaning of a term or give a result without explaining what it means.
- • Keep every number, symbol, label, and unit in its correct place.
- • Show enough working to check how you reached your answer.
Helpful habits
- • Read the whole question before choosing what to do.
- • Show one clear step at a time and check each step.
- • If you are stuck, draw a model, try smaller numbers, or revisit the example.
Now try your own
Create your own algorithms and flowcharts example, solve it, and explain how you checked it.
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