When the lessons become boring and you dream to run home or just to go outside and play with friends, I usually try to have some fun.
How you can do it- it depends.
I'd like to tell you one trick I and my classmates sometimes play on our teachers.

Once we were sitting at the math lesson. Do you know something, which is more boring? Well, I don't. our teacher was a monster, at least we believed she was. She was writing usual equations on the blackboard, and we were creating a new trick to play on her.
Finally, one boy took a piece of paper and made a paper plane. Needless to say what happened next From time to time the teacher turned her head trying to find the reason of sudden laughter or cry of astonishment or indignation, but saw dozens of innocent eyes looking at her and obediently writing the task down

Yeah… great time it was!..