This evaluation sheet works well for both separate activity and whole lesson evaluation purposes. It usually takes my students at least two minutes to fill it in. It is a good way to get feedback from students in order to tune up your lessons in the fiture. It is good for giving to your students at the end of the lesson. The method itself is called 'PIN the lesson'. The purpose is to let students evaluate Possitive, Negative, Intresting things of the lesson.