Summer Slide

According to Ashley Austrew at Scholastic.com, The Summer Slide is "the concept of the summer slide has been on researchers’ radar since at least 1996, when one of the first comprehensive studies on the phenomenon was published. The study showed that kids lose significant knowledge in reading and math over summer break, which tends to have a snowball effect as they experience subsequent skill loss each year. A more recent study of children in 3rd to 5th grades also showed that students lost, on average, about 20 percent of their school-year gains in reading and 27 percent of their school-year gains in math during summer break."

Read More at: https://www.scholastic.com/parents/books-and-reading/raise-a-reader-blog/summer-slide.html

In more detail, please check out Brookings coverage: https://www.brookings.edu/research/summer-learning-loss-what-is-it-and-what-can-we-do-about-it/