>One teacher will write one recommendation for you, then make copies
But what about filling the forms which might be different for different colleges (especially those not using Common Application)?
And I'm still interested about senior year teachers - do people typically ask them for recomendations? If so, when is the best time for that?
Also, how colleges look at recomendations from different teachers, depending on the difficulty of their subject? Would the recomendation from AP Calculus teacher "weigh" more than, say, from Chem honors or AP Statistics teachers?
(Yesterday, my D found out that one of the teachers whom she intended to ask for recs is already "full" - doesn't accept any more recomendees - from the first day of school (everybody but my D had been smart enough to ask that teacher last spring)!. And another one - answered "maybe". So, now she has a choice between asking some other teachers from her junior year - some of whom she didn't have quite good "relationship" with last year; or - asking her current senior year teachers ... but right now she feels silly about it, because they don't know her yet, but later it might be too late.

what would you suggest to her?)