What is the best way to practice fast parts?

Hi everyone, I have a question. I am currently studying the Ballade No. 1 in G minor Op. 23 by Chopin and I play everything at about 72 a quarter note. However, some parts of the piece are EXTREMELY fast. I would like to know how I can practice the faster parts so that I can make them faster, but accurate and clean. My teacher told me to play slowly with a metronome and once I could play it well, I could bump up the speed by one number on the metronome. Are there other ways of practicing fast sections?

fast section with fast pressing if you could...??
do you know why you cant press it fast..and acurate? because you cant do it fast so play slowly..your fingering dont recognize it

if you cant the best way is slowly...^^and PATIENT

note for playing piano.... play slowly...repeat...Patient and dont give up like this ^^

Well you do need to play it slow and accurate in order to memorize it and to play it in a fully conscious way. What parts exactly are a problem to you? There are many different techniques involved in this ballade.

As with almost everything you gotta start slow and increase, there are no shortcuts. The most important is to get the foundation solid. If you start fast it's like building a house without foundation, and that's a bad idea.