This article reminds me of Bill Gate's emphasis on measuring outcomes - here's a quote from the Gates Foundation 2013 letter [1]:

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Over the holidays I read The Most Powerful Idea in the World, a brilliant chronicle by William Rosen of the many innovations it took to harness steam power. Among the most important were a new way to measure the energy output of engines and a micrometer dubbed the "Lord Chancellor," able to gauge tiny distances.

Such measuring tools, Rosen writes, allowed inventors to see if their incremental design changes led to the improvements-higher-quality parts, better performance, and less coal consumption-needed to build better engines. Innovations in steam power demonstrate a larger lesson: Without feedback from precise measurement, Rosen writes, invention is "doomed to be rare and erratic." With it, invention becomes "commonplace."

Starting around 1805, the “Lord Chancellor” micrometer, according to author William Rosen, was “an Excalibur of measurement, slaying the dragon of imprecision,” for inventors in the Industrial Revolution. (© Science Museum, London) Of course, the work of our foundation is a world away from the making of steam engines. But in the past year I have been struck again and again by how important measurement is to improving the human condition. You can achieve amazing progress if you set a clear goal and find a measure that will drive progress toward that goal-in a feedback loop similar to the one Rosen describes. This may seem pretty basic, but it is amazing to me how often it is not done and how hard it is to get right.

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Nobody questions the need for measurement in engineering, but when Mr Gates tried to apply the same logic to measuring teacher effectiveness [2] he received a lot of pushback from people who say his method is flawed [3,4] or simply that teaching effectiveness cannot be reliably measured.

This is a controversial topic. Here is an interesting take on this subject from a book called Teaching as Leadership [5]:

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As we see modeled by these teachers, the less tangible nature of such longer term dispositions, mindsets, and skills does not mean they cannot be tracked and, in some sense, measured. In fact, if these ideas are going to be infused into a big goal, you must have a way to know that you are making progress toward them.

Mekia Love, a nationally recognized reading teacher in Washington, D.C., sets individualized, quantifiable literacy goals for each of her students but also frames them in her broader vision of "creating lifelong readers." This is a trait she believes is a key to her students opportunities and fulfillment in life. In order for both Ms. Love and her students to track their progress toward creating lifelong readers, Ms. Love developed a system of specific and objective indicators (like students self-driven requests for books, students' own explanations of their interest in reading, the time students are engaged with a book.) By setting specific quantifiable targets for and monitoring each of those indicators, she was able to demonstrate progress and success on what would otherwise be a subjective notion.

Strong teachers -- because they know that transparency and tracking progress add focus and urgency to their and their students efforts -- find a way to make aims like self-esteem, writing skills, "love of reading," or "access to high-performing high schools" specific and objective. These teachers -- like Ms. Love, Mr. Delhagen, and Ms. Jones -- ask themselves what concrete indicators of resilience or independence or "love of learning" they want to see in their students by the end of the year and work them into their big goals.

In our experience, less effective teachers may sometimes assume that because a measurement system may be imperfect or difficult, then it must be wrong or impossible. As Jim Collins reminds us in his studies of effective for profit and nonprofit organizations:

"To throw our hands up and say, But we cannot measure performance in the social sectors the way you can in a business is simply lack of discipline. All indicators are flawed, whether qualitative or quantitative. Test scores are flawed, mammograms are flawed, crime data are flawed, customer service data are flawed, patient outcome data are flawed. What matters is not finding the perfect indicator, but settling upon a consistent and intelligent method of assessing your output results, and then tracking your trajectory with rigor."

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Lastly, on a personal note I have found that I simply cannot lose weight unless I keep track of the number of calories I eat. There is something about seeing that number that has a strong influence over my behaviour.

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[1] http://www.gatesfoundation.org/Who-We-Are/Resources-and-Medi...

[2] http://www.metproject.org/

[3] http://jaypgreene.com/2013/01/09/understanding-the-gates-fou...

[4] http://garyrubinstein.teachforus.org/2013/01/09/the-50-milli...

[5] http://www.amazon.com/Teaching-As-Leadership-Effective-Achie...

Visible Learning, by John Hattie

http://www.amazon.com/Visible-Learning-Synthesis-Meta-Analys...

Teaching as Leadership, by Teach for America

http://www.teachingasleadership.org/

http://www.amazon.com/Teaching-As-Leadership-Effective-Achie...

Understanding Numbers in Elementary School Mathematics by Hung-hsi Wu

http://www.amazon.com/Understanding-Numbers-Elementary-Schoo...