It's more than two years until a law goes into effect requiring Washington elementary schools to screen students for possible signs of dyslexia. That's a reading disability that affects a lot of people — some estimates put the number as high as 1 in 5. But some teachers already are taking time out of their summer vacation to learn methods for teaching kids with dyslexia how to read, including four teachers from a school in the Highline district who are heading to a training this week.