I use this survey every year to get feedback on my teaching from the students. I find it incredibly useful for my personal growth as an educator to know what the students think about work. There are 20 open response questions in the survey that will address 5 categories of the class. Each section has a box where the students can give you a letter grade in each of the 5 categories.
I find this end of the year activity to be the most rewarding because it gives me an honest evaluation of my work. I love it when I read all the good things the kids say, but I also find it helpful when the students tell me what I can improve upon. This way every year is better and better and we can all grow!