As millions of students shelter in place to prevent the spread of the coronavirus, seasonal learning patterns, such as how much students retain over summer, can provide one idea of how learning may be impacted during the current health crisis, according to a recent study from NWEA, a national nonprofit that conducts research and creates adaptive preK-12 assessments.

Researchers estimate that students will return in fall 2020 with about 70% of the learning gains in reading compared with a regular school year. In math, researchers suggest that students will return with less than 50% of the learning gains and in some grades, “nearly a full year behind what we would observe in normal conditions,” the study reads.