Recently, I just got a new flute teacher(yey!). We started with G upt to C. My problem is that the lower notes are hard to produce. Most of the time, the notes would go an octave higher.

Help

Micron is totally right, he's a genius.

I had trouble with the low notes and my teacher told me to start with a B, then to A, then the 1st B, to an Ab, then B to G, and work your way down. and also make sure you act like you have an orange in your mouth and try blowing lots of air.

Try to keep a tighter embouchure for lower notes and see if that helps.

A tighter embouchure should not help. If anything, you need to diffuse the airstream slightly, and tightening (besides adding excess tension that can actually do harm) will tend to focus it, and may be accompanied by tightening of other muscles (such as the throat) that would be pretty much counterproductive. Micron is quite right about checking for leaks, but also aim your air down into the flute more.

So the lips should not be tighter when playing lower notes as opposed to higher ones?

Nope. It's more about how you're using your air (part of which is how big or small the aperture is) than how tight the lips themselves are. It's possible to tighten the lips while maintaining a large aperture, and to pretty much relax them while maintaining a small one. The lips do not need to tighten as you descend to the lowest notes (nor should they tighten to get the highest notes), you just need to use them differently to help diffuse the airstream slightly and angle it down into the flute more than you would for higher octaves.

Thanks for the info. It will probably help me to relax on those lower notes.