Reading a prepared speech is usually dull. If you're going to do this, practice it first and make sure you can read and keep your voice and the presentation interesting. Reading the paper once or even twice doesn't prepare you to lead class discussion. You'll have to spend a considerable amount of time preparing. If you don't, you'll look foolish and will have wasted all of our time.
Extemporaneous speeches are usually the best.
Have some prepared notes to which you refer occasionally. But make sure you stay conscious of your classmates and how they react to your presentation. Give it a practice run before class. You may think you have 5 minutes worth of material, and it takes 50 minutes to go through. Or vice versa.