[sharker8]

A deliberate practice environment has four elements: 1) Repeat exposure (aka volume of attempts) 2) Valid environment (a win is a win and a loss is a loss) 3) Timely feedback (you know immediately whether you won or lost) 4) Deliberate practice. Deliberate practice without the other three is not complete.

[thenerdhead]

I mostly inferred the practice part. You are right these are what constitutes it as a whole.