The recent Antarctic expedition is an excellent example. Electronic treasure hunts familiarize students with on-line resources in the same way library treasure hunts familiarize students with print resources. TeleOlympics participants compete against other students from their own schools in running, jumping, and throwing events. High school students regularly post poems to a university-sponsored poetry newsgroup. Peers exchange and comment on each other's writing.
Students write the first few stanzas of a poem then pass the poem on to another class.
Members of the new class read what has already been written and add a few stanzas of their own. Poems like this have circled the globe growing to nearly epic length. Simulated space shuttle missions provide opportunities for participants to attempt docking maneuvers, alternate landing situations, and lunar laboratory activities. Students in the roles of high-level negotiators representing various countries at an international conference hammer out simulated treaties governing the use of earth's limited resources. Students who became aware that villages in Nicaragua had need of access to clean water planned for and carried out fundraising efforts to help to purchase rope pumps for some of those villages.