Project Based Learning: The Beginning

This is my first experience with Project Based Learning.  I come in to this class with 8 MET courses behind me and yet, I come in still feeling uncertain about what to expect.  While I have begun introductory research on PBL, I still do not know what a project entails in time, resources and planning.  My early readings have me believing that PBL could be a good strategy for where I teach, but my unique situation creates many questions that I want to answer. Can PBL work when students enter and exit the class at different times?  How do you conduct PBL when students are working on different content and at different levels?    I teach GED students. Their focus is on learning what they need to pass the test.  They know they only have to be in classes until they pass.  Therefore, there is no set time for them to be in class like a traditional school.  What kind of difficulties does this pose for PBL and how can they be overcome?  Hopefully, when this class ends, I will have answers to these and other classes

JoeBod