The simplest difference
Formative assessment supports learning while it is happening. Summative assessment judges achievement at the end of a learning period. Both can use questions, scenarios or tasks; the purpose is what makes them different.
What formative assessment looks like
Examples include practice questions, scenario decisions, reflection prompts, classification activities and coached retries. The learner should receive feedback that helps them improve before final judgement.
What summative assessment looks like
A final quiz, observed task, scored case study or practical demonstration can provide evidence that an outcome has been achieved. The assessment needs enough validity to support the decision being made from the result.
Align both to the same outcomes
If the outcome requires judgement, formative practice should involve judgement and the final assessment should test judgement too. Do not practise simple recall and then expect learners to perform a complex task.
Use the outcomes and assessment guide to build alignment.
Formative feedback should do real teaching
Explain why an answer works, why a plausible alternative fails and what principle the learner should use next time. Immediate feedback is especially useful when correcting misconceptions.
Match assessment stakes to the consequence
Low-risk knowledge checks can be informal. High-risk certification or compliance decisions need stronger evidence, secure conditions where relevant and clear rules for pass marks, attempts and remediation.
A strong course usually uses both
Give learners chances to practise safely, then use a final assessment only when a final judgement is actually needed. A course does not become rigorous simply by adding more scored questions.
Put the guidance into practice
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