I never would have guessed you had challenges with memorization, presenting seems so natural for you. That must take a lot of practice to get to the point of being comfortable. Great job having the courage to lead the class! I say if you're not a little uncomfortable on a regular basis you're not living. : ) My issue is usually my nerves. I have to have something to reference or what I've tried to internalize will evaporate into thin air when the time comes.