Elementary and middle-school students have made up significant ground since pandemic school closings in 2020 — but they are nowhere close to being fully caught up‚ according to the first detailed national study of how much U.S. students are recovering. Overall in math‚ a subject where learning loss has been greatest‚ students have made up about a third of what they lost. In reading‚ they have made up a quarter‚ according to the new analysis of standardized test...