hey, i feel for ya. had to do a 15min speech last night and was SO stressed about it (Was losing sleep, constant anxiety etc).
so a few tips:
If you have the option to use powerpoint, then do. it really helps take the focus off yourself.
practice the speech on a friend / family member.. even though its not the same as a class full of people.. it really does help.
when preparing your speech, focus on the content.. so that even if your delivery on the day is a little under par you will atleast have shown understanding in yoru ideas (again, really helpful if you can have visual aids).
also, believe in yourself. its YOUR 10mins, dont rush. the audience has to listen to you and what you have to say.
and one last thing.. try and refrain from reading word for word... because in the end you become too focsued on 'sounding right' and saying things in the 'right' order.. and because you invest so much time and energy and worry into things going 'right' .. you lose track and it ****s with your natural flow..
duno if that makes sense, kinda hard to explain .. but i've found taht trying to let go of that idea really helps.
best of luck to you ~