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Aug 03
First Day of School/ Late Start Monday

First Day of School:

Wednesday, August 15, 2018.​ Classes will begin at 7:25 A.M.​

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The first Late Start Monday will be:

Monday, August 20, 2018. See the schedule below.

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***Only students enrolled in zero hour will begin at 6:30 a.m.***​

Jul 09
Summer Newsletters (2018-19)

​Learn more about distribution days, student orientation, school procedures, athletics, and activities in the 2018 Summer Newsletter.

Click the link below:

Cary-Grove High School

Crystal Lake Central High School​​​

Prairie Ridge High School
Jun 30
Athletic Fees for the 2018-19 School Year
Student athletic participation fees for 2018-2019 are $75 per sport, with a student maximum of $150 per student, and a family maximum of $300 per household. 

Athletic fees will be due after rosters have been finalized. The athletic fee will be posted in Skyward Family Access. Athletic fee payments can be completed through Skyward Family Access. After logging in, go to “Fee Management” to pay the fees associated with your student. Discover, Visa, and MasterCard are accepted for online payment. Athletic fees can be paid in person at school in the front office. Checks are payable to Community High School District 155. The $75 athletic participation fee will be waived for students who qualify and apply for fee waivers. 

District 155 has a no refund policy after the first IHSA event/contest. Athletes who quit their sport prior to the first IHSA event/contest will be eligible for a full refund, but must meet the following conditions: 
               • Notify the coach and athletic office (Athlete should notify coach and athletic office via email) 
               • Must be cleared of all uniform/equipment rentals by coach
Jun 29
Class of 2019 Meningitis Vaccination Requirements

The Illinois Department of Public Health requires that students entering 12th grade must be immunized for meningococcal disease. This vaccination will prevent your student from a severe form of bacterial meningitis as well as other illnesses caused by this bacterium.

All 12th graders will need to show proof of receiving two doses unless the first dose was administered after 16 years of age. In this case, only one dose after 16 years of age is required.

Documentation must be provided to the school nurse before Distribution Day in August 2018. You can submit documentation to the nurse anytime between now and Distribution Day. If you have questions about the meningococcal vaccination, please contact your school nurse.

Cary-Grove: Martha Manno: (847) 639-3825 or Email

Crystal Lake Central: Linda Haman: (815) 459-2505 or Email

Crystal Lake South: Colleen Wing: (815) 455-3860 or Email​​​​

Prairie Ridge: Sarah Folkening: Fax (815) 459-8993​

Jun 28
2018 Summer Construction

Twenty-two major projects across District 155’s four high schools are in progress for the summer of 2018, and nine have been completed as of July 17. The board approved $13,973,365 in capital improvement projects that are necessary for maintenance and to upkeep our schools (this includes the cost to relocate Haber Oaks).  

You can check this page for updates on all the projects.

During the week of July 23, crews painted the newly renovated tennis courts. This specific summer project is nearly complete. ​


During the week of July 23, crews worked on the concrete sidewalk entrance, parking lot and front entrance at Haber Oaks.


Several projects at Cary-Grove are being completed this summer. From windows to water lines, the building will be ready to welcome students back next month.



During the week of July 16, crews worked on the the new state-of-the-art incubator classroom at Crystal Lake Central. 


During the week of July 9, small but significant projects were completed at Cary-Grove and Crystal Lake South High Schools.


During the week of July 9, the track at Prairie Ridge High School was resurfaced. 


During the week of July 2, crews continued to work on the new space for Haber Oaks.


During the week of July 2, crews began repainting the gym at Crystal Lake Central as well as replace door frames throughout the school.​​​


During the week of June 25, crews installed two new water vessels inside the boiler room at Cary-Grove High School.


During the week of June 25, crews began ripping up the old tennis courts at Prairie Ridge High School. A new tennis shed will also be built next to the new courts.​


During the week of June 18, crews worked on Entrance 8 at Crystal Lake Central. There will be new steps, light fixtrures and doors once the project is complete.


During the week of June 18, construction crews began replacing the roof at Crystal Lake South High School. Get a 360 degree view of the project by watching the video below.


During the week of June 11, construction crews began installing new windows at Cary-Grove High School. The thermodynamic​ windows will help D155 save money on energy bills.​


During the weeks of May 28 & June 4, constructions crews started the parking lot project at Prairie Ridge High School. 


During the week of June 4, crews ripped up the track at Crystal Lake Central until only gravel remained. They are now in the process of paving it so runners can use it in the fall. ​


During the week of May 28, crews tore down walls and lockers at Crystal Lake South to make space for the new Haber Oaks Campus. ​​


The summer construction projects include:


  • Asbestos Abatement for Floor Mastic and Pipe Insulation - Completed June 20

  • Door Replacement - Substantially completed June 28

  • HLS Water Line Replacement - Substantially completed July 10

  • Tennis Court Replacement - In progress

  • Track Resurfacing - In progress

  • Air Conditioning – Cafeteria/Kitchen - In progress

  • Parking Lot Replacement - Substantially completed June 26

  • Gym Repainting - Substantially completed June 1

  • Entrance 8 Stair Replacement - Substantially completed July 3


  • Asbestos Abatement for Pipe Insulation - Completed June 29

  • HLS Water Line Replacement - Substantially completed July 9

  • Window Replacements - Substantially completed July 13

  • Stone Repair Project - Substantially completed June 7


  • Roof Replacement - In progress

  • Clock Intercom System Replacement - In progress

  • Softball Backstop Replacement - In progress

  • 1st Floor Renovations to accommodate the relocation of Haber Oaks - In progress


  • Tennis Court Replacement - In progress

  • Track Resurfacing - In progress

  • Storage Shed Construction - In progress

  • Clock Intercom System Replacement - In progress

  • Parking Lot Replacement - Two of the three substantially completed June 29

“Throughout the summer construction season, we have worked collaboratively with the City of Crystal Lake and the Village of Cary to improve our facilities. We appreciate their collaboration on these projects, and we are excited for our students and staff to see the renovations when they return in August,” said Jeremy Davis, assistant superintendent of finance and operations.

Additionally, the district continues to publish summer construction video updates on its website and social media channels to inform taxpayers and the community. The District 155 video updates have been viewed over 10,000 times and have been watched a total of 42 hours.

Follow @CHSD155 on Facebook, Twitter and Instagram for short video updates throughout the summer or go on the district’s website, Construction improvements are being completed on time, on budget, and on scope. Every project is going to be substantially completed before the students arrive in the fall.

May 20
Class of 2018 Graduation Video Link

​The Class of 2018 graduation video is now available to view online. ​


May 16
CG Robotics Hosts Robotics Camps

Register at:

Questions? Contact Katie Hatters at


Building 101 (6th to 9th Grade):       

This session is for students with little to no experience, but are interested in learning about the Robotics. Limited to the first 20 participants.   Additional sessions will be added if there is enough interest.

Session:                                               Location: CGHS - Media Center

Tues. June 26 

Morning          9:00 a.m. - 12:00 p.m.

Afternoon        12:30 p.m. - 3:30 p.m.

Cost: $30.00        

What to bring:  Water (a snack will be provided)


Building 201 (7th to 10th Grade):     

This session is for students with some prior experience or who have taken Building 101 before the start of Building 201. Limited to the first 24 participants. Additional sessions will be added if there is enough interest.

Session:  Wed. June 27                       Location: CGHS - Media Center         

Time: 9:00am -3:00 p.m.

Cost: $60.00                            


What to bring: Water (pizza will be provided for lunch)


Coding 101 (7th to 10th Grade):                   

This session is for students with little to no computer programming experience that would like to learn more about the coding process. Space is limited to the first 12 participants.  Additional sessions will be added if there is enough interest.

Session:                                   Location: CGHS - Media Center

Tues. July 10   

Morning          9:00 a.m. - 12:00 p.m.

Afternoon        12:30 p.m. - 3:30 p.m.

Cost: $30.00        

What to bring: Water (computers & snack are provided)


May 15
Cary-Grove Car Show Highlights Student Projects

Cary-Grove High School hosted its eighth annual autos car show to promote the autos program and future careers. Students, teachers and alumni were invited to showcase their cars during lunch hours on May 4.

“The autos car show is such a great way to show off the projects that we’ve been working on throughout the year and there’s a dire need for mechanics out there,” said Cadin Koeppel, a Cary-Grove senior.

Cary-Grove partners with McHenry County College to offer students dual credit.

“Representatives from the McHenry County College autos program made an appearance which is a great way for the students to learn more about the program,” said Dan Jegerski, autos teacher.

Over 30 cars were showcased in the Cary-Grove parking lot. The event had all types of vehicles from cars and trucks to classics and bikes.

May 15
Cary Grove Wins 2nd Annual Cooking Challenge at Mchenry County College

Students from Central, South, Cary-Grove and Prairie Ridge competed in a cooking competition at Mchenry County College on May 11. Four teams competed with four members on each team and had an hour-and-a-half to cook and serve four dishes to a panel of judges.

“Timing was everything,” said Cameron Deleon, senior at South High School.

Deleon and his group members cooked a seared pork with sauteed onions on top with a potato salad Hawaiian style and stuffed mushrooms. Similar to the cooking program, Chopped, these culinary students had to use two mystery ingredients, pork and mushrooms

“Figuring what to make was the most difficult part,” said Erin Hollister, Cary-Grove student.MCCcooking.jpg

Cary-Grove High School won first place cooking cuban pork with summer salad. Prairie Ridge High School won second cooking seasoned pork with sauteed veggies and garlic mashed potatoes. The plates were judged on organization, use of ingredients, creativity, and flavor.

“The judges have culinary knowledge and backgrounds to really provide the students with good feedback,” said Courtney McKnight, Cary-Grove culinary teacher.

First and second place teams won trophies. The first place team also took home a new edition cooking textbook required for culinary students at MCC called OnCooking. The MCC cooking competition exposes students to the culinary program and helps them see a future in culinary arts.

May 15
Cary-Grove Students Perform for Published Authors & Peers

Students joined published authors and faculty on stage for the third annual Writers’ Day at Cary-Grove High School.  Writers’ Day showcases students and professionals; it’s an opportunity for students to hear from their classmates and authors. Erin Palmero, a freshman, performed a poem for her peers at her first Writers’ Day and said she felt accepted and welcomed.

“It’s about sharing your feelings and no one is judging you. This was an opportunity to give kids who are more introverted, a voice.,” said Erin Palmero, a Cary-Grove freshman.


Poets Corey Dillard and Adam Gottlieb performed original pieces. Gottlieb was featured on the documentary Louder Than a Bomb. Both poets are part of the Teen Writers and Artists Project (TWAAP) which encourages artists to continuing writing. Dillard and Gottlieb offered a TWAAP workshop for a limited number of students at Cary-Grove. Students wrote a poem about their identity and were highly encouraged to share. CGwritersday.jpg

“I loved hearing those poems that the students wrote and I loved that the faculty also read some poems, leading by example,” said Gottlieb. “Some of the shy kids get to shine in ways that people have never seen. There is a community and resources out there for poets and being part of a community is so important.”

Students in Creative Writing recently completed the poetry unit. Creative Writing teachers motivate their students to perform their poetry on stage during Writers’ Day.  

“You see them shaking, you see how nervous they are, you see them put their heart on the stage. It is the most amazing thing to me,” said Sharlene Montgomery, Humanities Division Leader at Cary-Grove.

Montgomery organized the Writers’ Day event. Writers’ Day was created at Cary-Grove with inspiration from Fremd High School’s Writers’ Week.

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