How do I teach a skill to someone else?

Working out what you have forgotten you know, showing before explaining, and letting them do it badly.

Difficulty: beginner
Time: 30 min
Read: 4 min

Short answer

The main difficulty is that you no longer remember what you do automatically. Break it into steps, show it before explaining it, then hand over early and let them make mistakes — watching is not learning.

Being good at something is close to unrelated to being able to teach it, and the reason is specific: expertise makes the steps invisible to the person who has them.

Step by step

Recognise what you have stopped noticing.Experts skip steps unconsciously because those steps became automatic years ago. Watch yourself do it slowly and write down every single thing, including the parts that seem too obvious to mention.
Find out what they already know.Five minutes of asking prevents both teaching things they know and assuming things they do not. It is the most efficient part of any lesson.
Agree what success looks like today.One achievable thing. 'Make one loaf', 'change one tyre', 'play one chord change cleanly'. A lesson without a defined end feels like it went nowhere.
Show it first, whole and at normal speed.So they know what they are aiming at. Then break it down. Explaining before showing means they are assembling something they have never seen.
Then demonstrate slowly, narrating.Same thing, slowly, saying what you are doing and why. The why is what lets them adapt when the situation differs.
Hand over early.Sooner than feels sensible. Watching produces the illusion of understanding and nothing else. Doing it badly is how anyone learns.
Let them make mistakes.Do not take over, do not correct every small thing. Intervene for safety and for anything that would ruin the work — otherwise let it happen and discuss it after.
Give one correction at a time.Three at once and none land. Pick the one that matters most now, let it embed, then the next.
Say what went right specifically.Not 'good' — 'you kept the pressure even that time'. Specific praise tells them what to repeat, which vague encouragement does not.
Cut the amount of theory.Enough background to make the action make sense and no more. Beginners cannot hold much theory and it displaces the practical.
Watch for overload.Repeated questions, going quiet, mistakes increasing. That is a full working memory, not a lack of ability. Stop, do something easy, come back.
Keep sessions short.Forty minutes to an hour for something physical. Skills consolidate afterwards, so a second short session in a few days beats one long one.
Send them away with one thing to practise.One specific thing, clearly defined. Vague instructions to 'keep practising' produce nothing.
Adjust to how they learn.Some want the principle first, some want to try immediately, some want to watch several times. Notice which and adapt rather than teaching everyone the way you were taught.

Tips

Write down every step including the obvious ones. The steps you have forgotten you take are exactly the ones they need.
Hand over earlier than feels sensible. Watching feels like learning and is not.
One correction at a time. Three at once means none of them land.

Common mistakes

Explaining before demonstrating — They are trying to assemble a mental model of something they have never seen. Show it whole first, then break it down.
Taking over when they struggle — It is the moment learning actually happens. Intervene for safety, otherwise let them work through it and discuss it afterwards.

If it doesn't work

They nod along and then cannot do it

Cause: Too much watching and explaining, not enough doing — Fix: Hand over after one demonstration and let them try badly.

They keep making the same mistake

Cause: A step you skipped because it is automatic for you — Fix: Do it yourself slowly and watch for what you do without thinking. That is the missing instruction.

They lose confidence

Cause: Too many corrections at once, or too large a first goal — Fix: One correction at a time, and specific praise for what went right. Set a smaller achievable target.

Session ends with nothing achieved

Cause: No defined goal — Fix: Agree one concrete thing to complete before starting.

Questions people ask

How do I teach someone a practical skill?

Show it whole at normal speed first, then demonstrate slowly while explaining why, then hand over early and let them do it badly. Give one correction at a time and be specific about what went right.

Why is it hard to teach something you are good at?

Because the steps became automatic and you no longer notice them. Do the task slowly and write down every action, including the ones that seem too obvious to mention.