Summer School

Students can take a variety of classes during the summer. If you are interested in in Summer School, please understand that students must reside in District 155 boundaries and meet other requirements in order to be eligible for enrollment. With the exception of driver’s education courses, all summer school courses will be held at Prairie Ridge High School located at 6000 Dvorak, Crystal Lake, IL 60012. The main office number is (815) 479-0404. Driver’s education courses meet at the student’s home school.

A variety of special education courses and programs are offered during the summer.​ Information regarding Extended School Year-Special Education will be mailed to families after spring break.​ 

Any student who plans to attend summer school—including students with an IEP—should contact the student services department at his/her high school and register as soon as possible. Student services offices in all District 155 schools are open every weekday from 7 a.m. to 4 p.m. during the school year, and from 7 a.m. to 3:30 p.m. (Mon.-Thur.) or 12 p.m. (Fridays) during the summer. Please note: The way these courses are presented may change due to COVID restrictions. 

Early Elective Registration for Summer School 2021

Early registration is only available for the following courses.

Semester One (May 24 - June 11, No Classes May 31)
Consumer Education
U.S. History
Visual Art and Technology

Semester Two (June 14 - July 2)
Consumer Education
U.S. History

Dates are subject to change due to winter weather closures during the regular school year.

Early registration begins on January 22, 2021 for select courses. Regular registration for other summer school courses will begin in March 2021.

early elective summer school information - english

Early elective summer school information - spanish

Registration Information

Registration Begins: March 1

First Semester Registration Deadline: April 23
Second Semester Registration Deadline: May 28
First Semester: May 24 - June 22 (No Classes May 31)
Second Semester: June 14 - July 2

Summer School 2021 Registration Packet - English

Summer School 2021 Registration Packet - Spanish


Class Credit 

Unless otherwise noted, a ½-credit may be earned from successful completion of each semester of summer school coursework. Students may repeat courses they have previously passed, with the higher of the two grades entered on their permanent record. However, the student will only receive credit for the course once. Regardless of the course, all students must be present for the final exams.

Book Rental

Tuition fees cover the rental of textbooks, while required workbooks and any other supplementary supplies must be purchased by the student. Books will be distributed the first day of class and must be returned on the last day. Students are expected to return the books in the same condition as they were received. Students will be charged for lost or damaged books. 

Please note: This page contains links to documents that are in Adobe's PDF format.  If you have accessibility needs that make it difficult for you to access and / or interpret information in PDF format, please call 815-455-8500 or email, and we will be happy to assist you. 


Prairie Ridge High School
6000 Dvorak
Crystal Lake, IL 60012 
Phone: (815) 479-0404

Summer School Tuition & Fees

All courses: 
One semester tuition $180 
Two semesters tuition $360 

Course-Specific Fees: 
Visual Art and Technology $15 Supply Fee (plus $180 semester tuition)

*Note: There is a $15 late registration fee for all registrations received after the deadlines.*

Daily Class Schedule

Period 1 - 7:30 - 8:20 a.m.
Period 2 - 8:25 - 9:20 a.m.
Period 3 - 9:25 - 10:20 a.m.
Period 4 -  10:25 - 11:20 a.m.
Period 5 - 11:25 a.m. - 12:20 p.m.


Bus service to Prairie Ridge High School is provided at no charge to students from Cary-Grove High School, Crystal Lake Central High School, and Crystal Lake South High School. The bus schedule is as follows: 

Cary-Grove (front of school) to Prairie Ridge
Leave at 6:45 a.m. 
Return to CG by 12:55 p.m. 

Crystal Lake Central (main entrance) to Prairie Ridge
Leave at 6:55 a.m. 
Return to CLC by 12:55 p.m. 

Crystal Lake South (front of school) to Prairie Ridge
Leave at 6:45 a.m. 
Return to CLS by 12:55 p.m.