Now that mobile devices have become a great tool for teaching and learning, we can think about delivering professional development on the go. With so many great resources in our neighborhoods and beyond, let's move away from sit and get PD to creating the engaging learning experiences in the world around us. In our one to one iPad schools we want to create the kind of learning for teachers that we want for our students. See an example of how String Theory Schools used an iTunes U course and iBook for Learning on the Go at the Franklin Institute in Philadelphia and how that fostered new learning experiences for students.