Tuesday plans gone awry

Well, you know what they say about the "best laid plans of mice and men".  They didn't include women!!
I knew there was the education fair Tuesday and I also knew that some juniors would be going.  What I didn't do was count up how many from the 2nd hour class would ACTUALLY be gone.  So, when the second bell rang, there I was with four students instead of 28.  I couldn't really teach the lesson and then try and catch up 24 others on wednesday.  So it was drop back 5 and punt.  We went to the commons and grabbed some breakfast, sat and talked for awhile at a table, returned to the room and they worked on some of their other homework.  We also looked at their grades which had gone out for progress report Tuesday morning.  What did I learn?  Be proactive!  I should have figured out ahead of time how many would be gone and had something special for the boys to do.  We could have even had our own mini-education fair.  I have made a note in my planner so I will be better prepared for the same thing next time.