ASSOCIATED PRESS PHOTOGRAPHS
ABOVE: Mallory Taul (center) teaches a "mock" class with students Paula Carter and Zackary Ruesler last month during a "difficult dialogues" summer workshop for campus leaders hosted by the University of Missouri at Columbia. RIGHT: Suzanne Burgoyne simulates an unpleasant classroom encounter between an evolution-denying student and an astronomy professor struggling to control her lecture.

ASSOCIATED PRESS PHOTOGRAPHS ABOVE: Mallory Taul (center) teaches a "mock" class with students Paula Carter and Zackary Ruesler last month during a "difficult dialogues" summer workshop for campus leaders hosted by the University of Missouri at Columbia. RIGHT: Suzanne Burgoyne simulates an unpleasant classroom encounter between an evolution-denying student and an astronomy professor struggling to control her lecture.