Yeah, I know exactly what it is like to do that.
The teachers all say that I am zonked, but untrue, as I tell them that I am dreaming that I watch them teach, & even write on the board. I can see the clock, & anything that happens. It is so cool, but I don't like having another person in my particular seat besides me!!! I can repeat what the teacher said, can say what time he did everything, & might even be able to spot some troublemakers. The only catch is that I have to go back to my seat to wake up!