I know we all want 100% of our students to be engaged in our lessons 100% of the time, but in a day where we are expecting them to learn a good 6+ hours a day in class with us-is that really possible? I ask because, it's on our evaluations this year and I was fine with the write-up I received, but surprised that it was a problem that 2 students were not engaged the entire time. One was apparently playing with a coin-taking it in and out of his pocket and one was off in his own world daydreaming. I have 25 students, most of whom have the attention span of a gnat so for a 45-minute lesson- I'm really happy with that percentage. I'm wondering what others' opinions are on the subject. What's a reasonable expectation? Is 100% reasonable?