Be Fluent in the Way You've Chosen
Pronunciation
If you're speaking as an expert and you have chosen to use unusual vocabulary unique to your topic, take time to learn how to pronounce the important words and names properly. If you pause or stutter during the presentation, often well-meaning, high-functioning classmates (or adults) might chime in to fill the empty space in an effort to be helpful. Once that begins, it is a difficult environment to continue delivering your presentation.
If you're speaking as an expert and you have chosen to use unusual vocabulary unique to your topic, take time to learn how to pronounce the important words and names properly. If you pause or stutter during the presentation, often well-meaning, high-functioning classmates (or adults) might chime in to fill the empty space in an effort to be helpful. Once that begins, it is a difficult environment to continue delivering your presentation.
Posture
Practice standing still, planted firmly in one spot on stage. Have a plan for when you choose to move, rather than pacing randomly back and forth or shifting your weight from leg to leg.
Timing
Time yourself. Practice with the clock winding down in front of you. Do it until you get the timing right every time.
Why 10 minutes?
Because it works. An audience is good at focusing on one subject at a time in relatively short chunks.
But, really, can I go over 10 minutes?
No -- You want to use every moment that is yours without taking away time that was promised to other classmates and their families. It only takes 10 minutes to make your point unforgettably if you plan and practice for the best, most important message you have.
Technology
Practice with the technology you will use. If you fumble with the remote, leave helping text in place, or stop to skim the page looking for an icon, your audience may, intending to be helpful, begin offering guidance and advice.