Burning Aroma- Oh talking in front of a big group in high school was so hard for me, even now days with talking at work at times- but I agree with the above posters, take a deep breath, others are as nervous as you are.

Hopefully your teacher after words of this can give you some structure suggestions. I remember I used to always sway back and forth, fidget, pop my knuckles and all.... It was so hard, then asked to speak louder was so hard- but ya know one of the best suggestions I got was to just look at the posters at the back of the room to keep my head up, or to look at the top of the heads of people and not directly at them they aren't really going to note that you are not looking at their eyes I was told, who knows though...... it helped a bit

Wish you good luck on this, and remember, take it as an experience and try to learn from it