an iowa woman has been recognized by the president as the nation's teacher of the year. high school english teacher sara brown wesling. she was introduced by the president. she incorporates everything from singing to facebook in her 10th and 12th grade classes at johnston high school. >> if you were to come into my classroom the first thing you would notice is that my desk is in the back corner. despite the building designed to make it otherwise, my desk is in the back corner. this is but an outward sign of an implicit philosophy. teaching must be learner centered. the desk in the back of the room displaces hierarchies. creates an environment where a teacher becomes a lead learner, evolves into a web of interdependence where the classroom walls become