Saving Money

The "Conversable Economist" keeps looking for research supporting low-cost school reform proposals. Lately he's seen Classroom Evaluation of K-12 Teachers

"During the TES [Teacher Evaluation System] evaluation year, teachers are typically observed in the classroom and scored four times: three times by an assigned peer evaluator—high-performing, experienced teachers who are external to the school—and once by the principal or another school administrator. ... dozens of specific skills and practices covering classroom management, instruction, content knowledge, and planning, among other topics.... the evaluators are often pretty tough in grading and commenting on lots of specific skills and practices, but then they still tend to give a high overall grade.... almost everyone was ending up with fairly high overall scores, so the practical effects of this evaluation in terms of pay and jobs was pretty minimal.
Nevertheless, student performance not only went up during the year that the evaluation happened, but student performance stayed higher for teachers who had been evaluated in previous years. "... Imagine two students taught by the same teacher in different years who both begin the year at the fiftieth percentile of math achievement. The student taught after the teacher went through comprehensive TES evaluation would score about 4.5 percentile points higher at the end of the year than the student taught before the teacher went through the evaluation. ..."

It's a substantial change, presumably higher for some teachers (and students) and lower for others. It would be interesting to see how much the effect depended on the administrator evaluation vs. the external evaluator evaluation; what could be done by variations in the rubric, or self-evaluation, or even student evaluation using different rubrics. But mostly I'd be interested in how this would work with classes structured in non-traditional ways, especially flipped classrooms.

Taylor (the Conv. Econ.) links to his earlier low-cost reform research post at Low-Cost Education Reforms: Later Starts, K-8, and Focusing Teachers

three organizational reforms that recent evidence suggests have the potential to increase K–12 student performance at modest costs: (1) Starting school later in the day for middle and high school students; (2) Shifting from a system with separate elementary and middle schools to one with schools that serve students in kindergarten through grade eight; (3) Managing teacher assignments.... We conservatively estimate that the ratio of benefits to costs is 9 to 1 for later school start times and 40 to 1 for middle school reform.

Again, my main concerns would be how this interacts with modified classroom structure -- and with consolidation, which tends to separate the age groups from one another, and by increasing mileage among low-density populations tends to increase the cost of separating transportation.
Or then again, maybe not.