TED Talks Bill Gates:Everyone needs a coach.

Everyone needs a coach. It doesn't matter whether you're a basketball player, a tennis player, a gymnast or a bridge player. (Laughter) My bridge coach, Sharon Osberg, says there are more pictures of the back of her head than anyone else's in the world. (Laughter) Sorry, Sharon. Here you go. We all need people who will give us feedback. That's how we improve. Unfortunately, there's one group of people who get almost no systematic feedback to help them do their jobs better, and these people have one of the most important jobs in the world. I'm talking about teachers. When Melinda and I learned how little useful feedback most teachers get, we were blown away. Until recently, over 98 percent of teachers just got one word of feedback: Satisfactory. If all my bridge coach ever told me was that I was "satisfactory," I would have no hope of ever getting better. How would I know who was the best? How would I know what I was doing differently? Today, districts are revamping the way they evaluate teachers, but we still give them almost no feedback that actually helps them improve their practice. Our teachers deserve better. The system we have today isn't fair to them. It's not fair to students, and it's putting America's global leadership at risk. So today I want to talk about how we can help all teachers get the tools for improvement they want and deserve.
Let's start by asking who's doing well. Well, unfortunately there's no international ranking tables for teacher feedback systems. So I looked at the countries whose students perform well academically, and looked at what they're doing to help their teachers improve. Consider the rankings for reading proficiency. The U.S. isn't number one. We're not even in the top 10. We're tied for 15th with Iceland and Poland. Now, out of all the places that do better than the U.S. in reading, how many of them have a formal system for helping teachers improve? Eleven out of 14. The U.S. is tied for 15th in reading, but we're 23rd in science and 31st in math. So there's really only one area where we're near the top, and that's in failing to give our teachers the help they need to develop their skills. Let's look at the best academic performer: the province of Shanghai, China. Now, they rank number one across the board, in reading, math and science, and one of the keys to Shanghai's incredible success is the way they help teachers keep improving. They made sure that younger teachers get a chance to watch master teachers at work. They have weekly study groups, where teachers get together and talk about what's working. They even require each teacher to observe and give feedback to their colleagues. You might ask, why is a system like this so important? It's because there's so much variation in the teaching profession. Some teachers are far more effective than others. In fact, there are teachers throughout the country who are helping their students make extraordinary gains. If today's average teacher could become as good as those teachers, our students would be blowing away the rest of the world. So we need a system that helps all our teachers be as good as the best.
What would that system look like? Well, to find out, our foundation has been working with 3,000 teachers in districts across the country on a project called Measures of Effective Teaching. We had observers watch videos of teachers in the classroom and rate how they did on a range of practices. For example, did they ask their students challenging questions? Did they find multiple ways to explain an idea? We also had students fill out surveys with questions like, "Does your teacher know when the class understands a lesson?" "Do you learn to correct your mistakes?" And what we found is very exciting. First, the teachers who did well on these observations had far better student outcomes. So it tells us we're asking the right questions.