The End of the Year

One of the second-grade objectives is to discuss inventors and inventions. Another is to formulate "how?" questions--the beginnings of scientific inquiry. So this week I gave the students a challenge. I gave each table of children (six tables in all) some supplies--a double-A battery, a flashlight lightbulb, and aluminum foil. I told them to try to invent something.
A girl at one of the tables made the important discovery that if she wrapped the battery in the foil, the battery became warm. (In fact, the battery can get quite hot. Impressionable youth that may be reading this: this is an experiment that should only be attempted with adult supervision!) Some minutes later, a whoop of triumph came from a girl at another table: she had succeeded in getting the flashlight lightbulb to "spark," as she put it. Soon all the tables were giving her method a shot. Some could replicate her results, some couldn't; it's tricky to get the metal rim of the lightbulb to stay in contact with the foil, and to keep the foil in contact with both ends of the battery. But it's pretty darn cool when it works.
I asked them to try to explain what happened. One boy (who said he helps his dad with electric stuff all the time) said that the foil reflected the light from the lights on the ceiling, and that's what gave the lightbulb the necessary electricity; that, plus of course the nitrogen gas inside the battery.
We have five days left. Everything that needs to be graded has already been assigned, already turned in. The trick now is to continue our routine as closely as possible so as not to encourage more craziness than will naturally happen in the final week of school. That means we will still do language arts and science and social studies in the morning and we will still do math in the afternoon. I will still give out worksheets. The class has not yet risen up in mutiny.
We had a school concert yesterday afternoon. One of the songs was a Motown-inspired declaration of love for pizza (imagine first-through-fifth graders harmonizing "Pizza! Pizza!" to the tune of "My Girl", and you'll get the general gist). I was able to handle it up until the point a young'un went to the mike and started intoning a spoken part mid-song. Then I gave out a helpless cry of laughter that prompted a bunch of students to turn around--"Oh," I saw their thought balloons saying. "It was a teacher!"
Also enjoyable: a song about proper handwashing techniques set to the melody of Beyonce's "Single Ladies."