Local summer school expanding to cover more grades May 04 2021 Program will remain a Kiwanis Club and school district partnership as it offers classes for grades K-12 Prineville's summer school program is growing and so is interest in the local program. Enrollment opened in early April, and with six weeks remaining until the end of the school year, classes have filled up and enrollment is estimated at 630 students. "This is absolutely incredible. We anticipated at least a few hundred students, but the numbers exceeded our expectations," said Summer School Administrator Michelle Zistel. "The demand is so great, we've had to cap enrollment to match the number of staff members we have available."