There is a new media trope in town and it sucks.
At the end of the last lecture of every course I teach, I invite my students to stay in touch with me and to write me "postcards" in the future. More specifically, I ask them to describe what they are doing and how the knowledge that we created together in the classroom informs their thinking and decision-making. Until now, I've only shared these messages with my current students. However, each Wednesday starting tomorrow, my blog will feature one "postcard."