Classrooms Without Borders | 416 followers on LinkedIn. Open Minds. Open Hearts. | Classrooms Without Borders (CWB) is a premier provider of experiential professional development for teachers through study seminars that take place outside of the classroom. History, culture, politics and current events are experienced "live" through learning tours abroad with a focus on Holocaust and Israel education. The exposure to ancient and modern realities from a "first-person" perspective gives te...