Judy French's sixth-grade students were asked to give up five things that use electricity.
"It's so much more realistic and inspiring than saying 'Read these six pages,' French said.
The students gave up their televisions, video games and computers, took shorter showers and didn't use their blow-dryers or hair straighteners. They logged the amount of hours they saved, journaled about what they did instead, and wrote down their parents' reactions.
Don't take my word for it, let the class tell you about it themselves!