[jjshabado]

It doesn't matter how you design the forms if everybody knows they are meaningless. In most schools almost nothing is done about bad feedback. If your evaluations are actually meaningful make sure thats explained when the forms are distributed. If they're not, just give a piece of paper with a smiley face-minus the smile. Have the students finish the face with a smile if they like the teacher, a frown if they didn't and anything in between.

It'll be just as useful.