Feedback for the teacher

I am thinking of an idea, each week I give the student a weekly note,

However, earlier this year I was talking with a teacher at a conference and he talked about a worm for use within class, how engaged are our students. This was an interesting project where I developed a jQuery system for students to enter in a rating or use a slider. 1 equalled disengaged, 5 = engaged. Students just wanted to enter a 1. Just because they could.

Now 8 months on, I have been thinking, what if students were able to give me feedback on my teaching, how engaged they were. The only issue is, do I want to know who they are. Should that part be optional? How long should it take them? Will they take it seriously? WIll it fix up some areas of my teaching that I am not aware of? How will it be reported? Do I share it with my students?

What system should I do it in, moodle, google docs, or write one myself?

I do like the idea...