Reinventing Project Based Learning
For teachers seeking a CheckList-type book about how to structure student projects within the standard constaints (only have normal-class-schedule-time-slot plus homework to deal with, don't even use 100% of classtime, etc.), this is a handy book. It gives you nice phases, meta-questions, thinking-taxonomies, etc.
If you, on the other hand, believe that "real" Constructionist project require changing the meta-game, this book won't take you very far. (It's possible that some of the online resources it refers to go farther...)