Its fourth period, about 10:45 in the morn­ing. I have been at school for about three and a half hours and taught three classes. I ease into my desk chair as the last of my stu­dents file out of the room and into the hall­way, with a mind for being as pro­duc­tive as pos­si­ble in the 40 min­utes I have with­out stu­dents. I no sooner uncap my trusty pen to begin mark­ing, when my email alert chimes and I begin to read it. As I begin to read the email that has come in while I was teach­ing, Tweet­deck con­ve­niently alerts me to a new batch of tweets from the peo­ple More >