I recently finished the Hacking PBL book from Ross Cooper and Erin Murphy. I’ve used Project Based Learning in my classroom for the last few years, but I felt as if there was more to learn about the process. Hacking PBL helped me create a planning tool and framework for each project I try with students. I really enjoyed the chapter on having students create questions. I highly recommend this book for any teacher looking to implement PBL in his/her classroom.
Hacking PBL website: http://hacklearning.org/hacking-project-based-learning-10/
My notes from Hacking PBL: https://goo.gl/XX3jCV