As Gov. Nathan Deal signed his Opportunity School District bill last week, the idea was earning high praise at a forum down the road at Morehouse College, which featured national education figures including Michelle Rhee. Today, I discuss what those leaders said about the takeover model. Readers share their view of the governor’s push to seize control of failing schools. In a guest column, a former tutor at a low-achieving school talks about how hard it was to make her lessons stick and whether that offers a lesson for the testing culture that has taken over education.