what kind of reduction? I hate to be the bearer of bad news, but given the heighten anxiety of the situation the odds are very low you will have any significant reduction in stuttering in 2 - 3 weeks. So you have 3 realistic options 1. Try any fluency technique you may know and hope for the best. 2. Speak with your teacher and avoid the situation 3. Do it, but accept the fact that you're going to stutter, remind yourself of that during the stuttering moments, and be proud of yourself afterwards that you did it