Every school day, teachers everywhere arrive an hour before school starts and leave at least an hour after school ends, often hauling a bin or crate of grading or prep to complete. We spend hour upon hour researching the best methods to teach, to differentiate, to engage. We spend hours, creating, preparing, and tweaking lesson plans, activities, and assessments. At the elementary level, teachers spend hours decorating and cutting and laminating and stuffing little sandwich bags for new activities. At the secondary level, English teachers, for example— sift through, read, correct, and comment thoughtfully on 120 students’ 3 page papers (which totals 360 pages of material – for one assignment.