a) Ho imparato la lezione (/mia/ is usually dropped) b1) lezione appresa b2) lezione imparata (a) is kind of emotionally 'neutral', it could be said by a child with an happy voice, or by somebody you scolded, to express regret, and the desire to do better (b1), (b2) are a terse way to say that 'next time will be better', and eventually to stop arguing. /appreso/ is past particle from /apprendere/ (to learn, but in a factual way, like when you learn how to behave, or how to assemble an engine); it is seldom used as a verb (with the exception of past particle) and originates the noun /apprendista/, a person who is learning a job in the field. /imparare/ is more generic: imparare a camminare imparare a leggere imparare l'italiano

Hi, literally is: "ho imparato la mia lezione" Cheers