There are students in a school in Nevada who are doing some cool stuff to integrate Science, Writing, and Global Literacy.
They are sending a weather balloon up through the atmosphere and are asking folks around the globe to contribute their "High Hopes" before the May 27th launch. Then, your comments will literally be a "High" hope--high up into space!
You can read about their project here: http://classblogmeister.com/blog.php?blog_id=1157004&mode=comment&blogger_id=65078
They blog about their project with links for more information. It looks like they already have international participation and you can participate yourself, or it can be a project for your students at school.
This kind of effort, collaboration, and thinking is what 21st Century Learning is all about!
Way to go Mr. Crosby's class!