Most kids see summer break as a chance to kick back and tune out until the next school year.
But research has shown they need to keep their minds active throughout the warm months to keep from sliding backward.
And even though there's one thing that's sure to be on the mind of your kids this summer (a break), teachers say that shouldn't be the only thing on their minds.
"It's so frustrating when you come back and you're like, 'Okay, we stopped. Let's go.' and they aren't ready to go because they've had a whole summer with their brains on vacation," said Courtnie Broadus, a math teacher at Tongue River High School in Sheridan County.
So educators say do something -- anything, really -- to keep your mind going.
"I don't think they need to buy a specific workbook," she said, "but I think they just need to be open to thinking about things and calculating things."
Calculating things like tips in your head or how much money you're going to make at your job.
"If you come back your senior year and you're not entirely prepared, you don't remember last year, you're obviously going to have kind of a hard time," said rising senior Sarah Maze.
"Do lots of reading, lots of periodicals," P.J. Marshall, a social studies teacher, said. "Watch the news."
"Read good books, too," he went on. "Enjoyable books, books that make you smile, books that bring joy to your heart."
But just as important as keeping up with work, Marshall said, is keeping up with play.
"Go fishing, go camping, be with family, be with friends, laugh a lot."
"It's all about finding stuff you'd enjoy doing anyway," said Donovan Powers, another rising senior. It is, after all, a break.
Tongue River High School is also offering a couple online summer electives this year, like digital arts.
Administrators say they expect some kids to opt for almost year-round school when more choices become available.