Number of exercises and the learning of some subject? For example, I show to my students that XY=Z, so I ask for them to do some exercises, so in the future, they will always know that XY=Z.

Is there any known study relating the numbers of exercises needed to learn a subject?

And that relates the numbers of steps with the amount of practise?

Because we can see clearly that the sequency 1-3-8 is easier to remember than 1-3-8-6-9-8-7-5-5.

But the second sequency will need three more times of exercise to remember?

I think this may be useful in my studies, considering time a important factor.

If a do just some exercises, I just can half learn, and if I study much more than I need, I waste my time.
Learning is a very complex process, do not expect to find precise answers like “5 exercises are required to learn a new subject”. There are many factors that affect learning, just to name a few:


Your existing knowledge.
Your engagement with the subject.
How you learn. Deep Vs shallow processing.
The complexity of the subject.
Your personal characteristics e.g. IQ.
Your current state, how much tired you are etc.


With so many factors involved is impossible to give precise answers.