At least one national research team found that Black and Hispanic students lose about a month's worth of math and reading knowledge during a typical summer break.

Read this article by Cathryn Creno, in The Republic | (azcentral.com) about the academically negative effect of  the traditional 10-week summer break on mostly Afroamerican and Hispanic kids from low-income families.

"It can take teachers as long as four to six weeks at the start of a new school year to help kids brush up on skills they had previously mastered," said Pearl Chang Esau, who heads Expect More Arizona, an education advocacy group.” 

Read also " Study: Minority-Serving Schools Serve Students of Color as Well as Predominantly White Institutions"

Fragment from the article on Diverse Education:

"A new study challenges the notion that Black and Latino students are less likely to earn a college degree if they attend minority-serving institutions, such as historically Black universities or Hispanic-serving universities".