QUOTE(skylark @ Sep 11 2009, 07:35 PM)

I'm trying to learn some pieces which aren't in a tutor book, so there are no fingerings written in. Is there a system to working out fingerings or is it trial and error?
(I've been learning a year and the pieces are probably about Grade 1 level)
It's unusual for pieces of this level to have no fingering at all - does it give you a starting point, or are you properly left to work it out.
Playing the piano is all about different hand positions and moving them around and manipulating them. So if you've been left to work it out:
first look at the first bar or phrase, where is the highest and lowest point, can you cover this with one hand if so fine work out which the most logical finger is to start on, if not are there any familiar patterns like arpeggios in there, in which case standard arpeggio fingering may be possible. If it is a longer phrase it may follow a scale pattern or meander around it, in which case does your hand need to change to a new position, as kerioboe says, do you need to pivot on your thumb, either under or over.
Take it bar or phrase at a time and mark in the fingers to start on and when your hand needs to change finger position. you should then be able to build it up from there.
It does become second nature after a while, but can be a bit daunting when faced with a whole piece.
Which piece is it, can we help at all?
Good luck