We're all for finding novel ways to motivate D.C. public school students to get good grades and go to college, but something about this story in the Examiner strikes us as odd. A group of students are lobbying the D.C. Council to revive legislation that would establish a system of cash rewards for student achievement. The bill, which as it's currently written would provide valedictorians $3,000 apiece and students who have improved the most $1,000......