With Earth Day coming up, here is a link for teachers to a lesson that gets students thinking about the amount of plastics in their home, class, city, state, and the whole of United States. It’s math put to good use. The lesson goes on to imagining plastic and its effects on wildlife and in the North Pacific Gyre (The Great Pacific Garbage Patch). Thanks to the Earth Day Network for a lesson that fits perfectly with “The Red Bag.”