 This familiar picture, high school graduates in Caps and Gown shows a major milestone in these students' lives, but our country has also just hit a major milestone. We're now graduating 80% of our high schoolers, and we're on track to reach 90% by 2020. This progress is great news, and the result of a lot of hard work by teachers and school leaders. But the progress is uneven. Over 30 states are on pace to meet the 90% goal, but others are far from it, and the aggregate numbers can be deceiving. We're leaving behind students with disabilities, English language learners, and low-income kids. Because when you break out these groups, the graduate numbers are far lower. Only six states graduated 80% of their low-income students in 2012, and three graduated fewer than 60%. So while the overall news is great, we must do more. High school graduation is a major milestone, but these days it's not the final one. Students need to be ready for what's next in college and on the job. Without improving graduation outcomes for every kind of student, far too many young people just won't be prepared for what comes next.