I have never seen a sticky ball before I came to Taiwan. It is a marvellous invention that helps even the dullest of classes. If you can whip out the sticky ball and let students hurl it at the board they at least pretend to pay attention. I try my best to only use it when the students are good. Today I am not sure I have the energy to carry the class... I pray that they will be interested in the lesson and that the sticky ball will remain in it's case.
I don't remember being this old on Monday.