"Mid-year or more frequently, I ask students to complete an evaluation form. I craft the questions carefully so simple answers are hard to write. Instead, I try to create specific, complex questions that cover the material, the classroom activities and the students—peers and the individual.
Many teachers shake their heads and avoid these exercises. They scoff that students would actually take the forms seriously or that the students will say anything useful. But I find the nature of the questions often elicits a straight answer—short, but helpful."
Via Beth Dichter, The Rice Process