How to make an employee learn from his mistakes?

Thanks for invitation,

By using "Coaching" style in his training, i.e. by indicating to him his own mistakes, then discussing with him how its  happened and how to avoid same in the future.

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Make him - her do the same task again put under your supervision, and do not forget to learn him - her first how to achieve in the right way !

For a manager

Don’t make it Public

Keep an open mind

Don’t lose your cool

Look for solution

Drive home the lesson

Great People Practice the Six A’s of a Proper Apology:

·         Admit - I made a mistake.

·         Apologize - I am sorry for making the mistake.

·         Acknowledge - I recognize where I went wrong that caused my mistake to occur.

·         Attest - I plan to do the following to fix the mistake on this specific timeline.

·         Assure - I will put the following protections in place to ensure that I do not make the same mistake again.

·         Abstain – Never repeat that same mistake twice.

People who implement the Six A’s will find that the level of trust and respect others have for them will grow tenfold. People who implement the Six A’s will find that others will be quicker to forgive them and more likely to extend a second chance. It’s not the making of a mistake that is generally the problem; it’s what you do with it afterward that really counts.

Depend on the Mistake if it is material or not and depend on the intention of the employee and his learning curve, many parameters should be taken in consideration.

Manager can motivate, punish, between motivation and punishment lot of things can be done. 

He should write a report for this mistake and what the correction for it and he must take the responsibility for each mistake as per mistake severity, then you may give him a test you make same situation and observe what he will do.