To my astonishment, I run searches, but to no avail! So if you have a link to a thread I couldn't find, by all means lay it down, and close this thread

My question is, my teacher wants me to play an individual fingering exercise... why? The question didn't even occur to me in the lesson, and I don't understand why I have to do this? Usually I wouldn't complain, but it's incredibly frustrating when my fingers CAN'T do it!!!
(Apparently because we evolved without direct tendons to the 4th and 5th finger or something? Which makes me think this may as well be impossible!)
Usually if I played C to G, back and forth hitting all notes in between, 1-2-3-4-5-4-3-2-1 (RH), ya see what I mean? I just keep
all my fingers raised. Of course you can't say this method uses tension though, because naturally you have to hold your arm up with normal muscle usage to be keep your hands above the piano... it's the same for my method... but I bet someone would complain about it!!
It seems logically useful to be able to raise one finger at a time... but thinking of a scenario where it is useful (besides this friggin exercise!)... I'm not coming up with anything, can anyone explain? ^_^;;