Idaho received the fourth-lowest grade in the nation for its school system today, as Education Week released its annual rankings of state school systems. Idaho EdNews reports that Idaho’s grade came in at 67.6, a D-plus, topping only New Mexico, Mississippi and Nevada. The ranking was unchanged from 2016. The state earned especially low marks for per-pupil spending, the percentage of 3- and 4-year-olds attending preschool - which was the lowest in the nation at 29.6 percent - and the percentage of Idahoans over age 25 who hold a post-secondary degree, which was 11th lowest at 35.9 percent, writes EdNews reporter Kevin Richert. His full report is online here.