Challenge Based Learning is a resource from Apple that provides resources for teachers to use the "Challenges" in their classroom. The program leverages multimedia resources and "challenges" students to solve a problem working in teams. There is a lot of information and resources available for teachers and you can use their example challenges or create your own.
This is a great resource for teachers who already use Project Based Learning, or who want to start using this type of educational approach. Students learn content, communications, critical thinking and teamwork.
I have already found some great resources and ideas from this site.
If you have used this program, please share your experiences with us.