Tell your professor you’d rather present to her/him in person. That it’s not something you call a disability and it’s nothing you can help. I stutter and i have two bachelors degrees so I’ve had to give presentations. the presentations sucked because my stutter came out HARD- obviously because that was the ULTIMATE stressful situation. Your teacher should understand. And if your classmates ask you why you didn’t do it, I don’t know, Make up something.