Practise the real task, not the tidy version of it

Sessions that rehearse a clean scenario prepare people for a situation that does not occur at work.

Designed practice tends to drift towards clarity. The case study has all the information present, the customer states their problem in an orderly sentence, the equipment is in working condition, the colleague responds as expected and the interruption does not happen. This is understandable, because a clean example teaches the underlying structure and a chaotic one can bury it. But a person who has only rehearsed the clean version has practised recognising a situation they will rarely meet. The real task arrives with information missing, with two problems tangled together, and while something else is going wrong.

The correction is not to make training harder for its own sake. It is to make the practice resemble the conditions of use once the basics are established. That means incomplete information in at least one rehearsal. It means a scenario where the first approach does not work and the person has to choose again. It means the interruption, the awkward response, the piece of equipment that is not quite the model they use. These are not complications for realism's sake; they are the cues that will actually be present when the skill is needed, and practising without them means practising the recognition step against the wrong signals.

There is a cost, which is honesty about time. Messy practice takes longer than clean practice and covers less ground. A session redesigned this way will get through fewer topics. That trade is usually worth making, because breadth that does not transfer is not breadth, it is a list. The awkward part is that coverage is what most training is sold and specified on, so the designer who does the right thing frequently has to defend a programme that looks thinner on paper than the one it replaced.