Detroit Public Schools has enrolled about half of its students for the six-week Summer School Academy, but said Thursday it has room for more.

District officials said 33,882 students are signed up for the academy, which runs June 21 to July 29. The academy is free for DPS students who meet federal Title I criteria. DPS students who don't meet the criteria will pay $250 for the summer.

Nondistrict high school students will pay $250 per class and can take up to three classes. Nondistrict students in elementary or middle school will pay $500 for the summer.

Breakfast and lunch will be provided for the students. The district expects to employ 2,035 teachers and 510 support staffers. In 2010, the district enrolled 38,717 students in the summer program. The program was free last year and paid for with unused Title I funds.