Thu 28 Apr, 2011
Bill Gates: Did he get it right?
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Bill Gates has, by any standard, been a successful entrepreneur, businessman, and philanthropist. For a college dropout, he’s done rather well.
With the continuing dialog, and at times, bombast, regarding our educational system, there has been a great deal of attention focused on teachers. The main focus seems to be on evaluating teachers. From some quarters, the intent seems to be to get rid of as many senior teachers as possible, from others it is truly a dialog regarding how to put together a competent, helpful, and meaningful evaluation system.
Bill Gates entered the debate with $355 million (USD) through his foundation, The Bill and Melinda Gates Foundation. The intent of this is to overhaul the personnel departments of some big school districts, and the way they evaluate teachers.
Social scientists and, according to a newspaper report (Sacramento Bee, 1.04.10), thousands of teachers, are involved in developing a “better system for evaluating classroom instruction”.
There is a $4 billion grant “competition” from the federal government for the same purpose. Some twenty sates have jumped into the competition pool. It’s a lot of money.
Mr. Gates and his foundation aren’t the first ones in the pool. A widely panned method, put forth by economists, is a statistical exercise that purports to measure how much teachers help their students learn. It is based in changes in standardized test scores, and the changes from one year to the next. It’s called the value added method.
Gates’ effort and research starts with value added. The aim, however, is to develop other, better, methods for measuring teacher effectiveness. A large part of the effort is to also help educators understand the reason one teacher is more successful in the classroom than another. The “help educators” part is a big part of how Gates may be offering something useful.
What is described by researchers and educators involved with the project as “maddeningly complex”, the effort looks at much more than simple, and largely discredited, standardized test scores.
Gates was surprised by the lack of study on what actually makes a good teacher, what he calls the exemplars: “What’s unbelievable is how little the exemplars have been studied.” For those of us who are in or who have retired from the educational system, it’s not a surprise at all. All too often, the high priced trainers who took up staff development time were either rookies with very little teaching history who abandoned the classroom to become corporate trainers to those who simply had never spent any time in a classroom teaching children. They were not credible at all, and we all knew it.
Gates, on the other hand, is using video to help figure out the puzzle. By June, 2011, his researchers should have about 24,000 video taped lessons. Eventually, the researchers will review over 64,000 hours of classroom instruction. They are looking for a correlations between teaching practices, high student achievement, and value-added scores.
Thomas Kane, a Harvard economist, is leading the research. His hope is that more districts will start using classroom videos for training and evaluations. The foundation is working to keep costs down. The start up costs can be significant: $1.5 million for a 140 school district with 7,000 teachers, with ongoing costs in the $800,000 range.
For the most part, districts already spend quite a few dollars evaluating teachers. If the Gates initiative is actually something that provides a quality method for evaluations, then the real costs will have to be quantified.
Did Gates get it right, again? He may have. At the very least, his research efforts are doing the apparently heretofore unthinkable: using actual exemplary teachers and teaching methods to not only evaluate effective teaching methods, but to help teachers reach a better understanding of what it takes to get to the exemplary level. It beats using a system that relies on standardized test scores as a sole method of evaluating effectiveness in the classroom. Standardized test simply aren’t capable of measuring all of the chaotic variables that walk into a classroom with each child, and coming up with anything meaningful. Gates system might be able to do it.
As always, assume nothing, verify everything. It’s less embarrassing that way.