Flute trill key?????

Question: Flute trill key!?!?!?!?!?

I have a gemeinhardt M2 and I don't know how to trill the third octave F!. I just started Band Camp this week and it started last week!. So I am a week behind and I never saw a third octave F trill before!. I just entered 9th grade!. Please help!!!

~?Ashley?~Www@QuestionHome@Com

Best Answer - Chosen by Asker:

finger a high f and move your left thumb slightly left so it's on the b flat key (the circular key)Www@QuestionHome@Com