Good news and bad news for Wisconsin as test scores are released. Fourth and eighth graders across the country take the annual test that measures their proficiency in things like reading and writing. When comparing the scores by state, Wisconsin eighth graders were near the top of the list in both reading and mathematics. This year’s test scores in Wisconsin were largely unchanged from the 2017 test scores. That is the good news. The bad news is that Wisconsin has the widest achievement gap between black and white students of any state. That is a title Wisconsin does not want to hold. Wisconsin Superintendent of Schools Carolyn Stanford Taylor rightly calls the achievement gap a crisis and says closing the gap is imperative for our state. But how to do that remains elusive. Wisconsin has long had a large gap in test scores between white and African-American students, but that gap is getting larger. One answer to closing this gap is to expand four-year-old kindergarten opportunities around the state. Stanford Taylor has called for that in her State of Education speech, and state legislators are considering a bill that could expand 4k around the state. Given Wisconsin has the dubious distinction of having the greatest disparity in test scores between black and white students, lawmakers should vote to expand 4k, which has been shown to increase literacy rates. Not doing so only increases the likelihood that this achievement gap will continue to grow.