Trying to make his case for overhauling the nation’s education laws, President Barack Obama is highlighting progress at a Tennessee high school as evidence that the proper incentives can help all schools succeed, the Associated Press reports. Obama focused his weekly radio and Internet address Saturday on Memphis’ Booker T. Washington High School, where the president delivered the commencement address Monday.Graduation rates at the school, which is in a poor, crime-ridden neighborhood, have risen impressively in just three years…