This is a low-tech version of the Bione Video project. Your class puts together a box with physical objects representing your biome and geographical location, but not giving it away. They make clue cards to go with the objects. They make an answer sheet for the clues, identifying their biome and location, which they put in a sealed envelope in the box. Then they mail the box to another classroom.
Classes can make several boxes as group projects.
In its fourth year. Cemetery Data Explore cemetaries and obituaries for clues to human population trends. In this collaboration students create an online medical mystery. They post descriptions of the symptoms of fictitious patients. Students from other schools diagnose the illness and communicate with the authors of the mystery through message boards.