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September 2019

From the Principal: Welcome back!

Dear GBN Parents and Families:

The Spartan class of 2023 has arrived and we are officially underway for the 2019-20 school year.  Our sophomores are now veterans, juniors are preparing for the rigors of the college application process, and seniors will be walking across the stage in roughly nine months. The time will fly by and the GBN staff will be here to support and inspire everyone along the way. Best wishes to all families for a prosperous and invigorating school year as you may have sent some former Spartans off to college and others back to elementary school or junior high.  

Whether you are a veteran GBN parent, an alum, or this is your first child to attend high school, my colleagues and I are excited about our partnership for the 2019-20 school year and what lies ahead for our GBN Spartans. We look forward to providing a challenging and well-rounded educational experience that serves your child’s unique interests and strengths among the four A’s (Academics, Athletics, Activities & the Arts). GBN’s outstanding faculty and staff will inspire and guide your children as they navigate their four years of learning and growth, forming impactful and enduring relationships. We will continue to strengthen our sense of community with a common focus on wellness.  

Don’t hesitate to contact me if you wish to discuss a particular matter in more detail, so that we can work together to best serve your child. (847.509.2400 or

Thank you, and I wish your families an engaging, rewarding and joyful school year.


John L. Finan, Ed.D.

Principal, Glenbrook North High School

Glenbrooks enhance safety and security communication

District 225 administrators have finalized consistent strategies for addressing urgent communications. Parents, students and staff can expect the following in regard to safety and security communication:
• The subject line will read “GBS/GBN: Safety and Security Update.”
• Safety and Security Update official email letterhead will be utilized.
• In addition to an initial phone call and email, in emergency circumstances (lockdown and school closing today), a text message will also be sent to all phone numbers listed in the student information system. If you would like to “opt out” simply text 67587 with “opt out.” You do not need to “opt in” to texts for emergency purposes. 

Additional safety and security projects

More than 700 wireless access locks are being installed at Glenbrook North, Glenbrook South, and Glenbrook Off-Campus. The installation is expected to be complete by November. The rekeying of all physical locks, while transitioning to electronic door access locks for all exterior doors and classroom doors, represents the district's safety and security task force’s highest priority recommendation. Additional recommendations that have already been implemented include the addition of bullet proof glazing in key areas, construction of more secure main entrances, the addition of exterior bollards to provide safety barriers, and improved lighting at main entrances and walkways.


Parent Night in the Classroom

6:45 p.m. Thursday, September 5

Parents will have the opportunity to follow their child's abbreviated schedule, meet their teachers, and learn about their courses, class expectations and academic goals.

(Link: View schedule here)


Driver Education Parent Night

6 p.m. Thursday, September 5, Little Theatre

This event is for parents and students who are currently enrolled in driver education for first semester. It is an informational meeting to introduce newcomers to the program and talk to parents about how to assist their child with driving.


Roald Dahl's “Matilda the Musical”

7 p.m. Thursday September 26 through Saturday, September 28  

Matilda is a little girl with astonishing wit, intelligence and psychokinetic powers. She's unloved by her cruel parents but impresses her schoolteacher, the highly loveable Miss Honey. Over the course of her first term at school, Matilda and Miss Honey have a profound effect on each other's lives, as Miss Honey begins not only to recognize but also appreciate Matilda's extraordinary personality. Matilda's school life isn't completely smooth sailing, however – the school's mean headmistress, Miss Trunchbull, hates children and just loves thinking up new punishments for those who don't abide by her rules. But Matilda has courage and cleverness in equal amounts, and could be the school pupils' saving grace. 

Tickets are $12 and can be purchased at Student Activity Passes will be accepted for a discounted ticket price.

Homecoming Dance

8:30 to 11 p.m. Saturday, October 5, Back Gym

Get ready for the homecoming dance! Tickets will be on sale Oct. 1-4 in the bookstore; $20 with an activity pass, $25 without an activity pass (or for a guest) or $25 at the door the night of the dance. If you plan on bringing a guest from another school, "Guest Forms" must be filled out prior to purchasing your ticket in the bookstore. "Guest Forms" will not be accepted at the door the night of the dance. This is a semi-formal event (no jeans or shorts). Proper dress is required. Please use Athletic Drop-off Entrance (Door O).

GBN encourages parent involvement

Parents’ Association

Betsy Sharpe

Booster Club

Mark and Lori Spencer

Special Education Parents Advisory Board

Kathy French


Choral & Theatre Parent Organization

Liz Vasiljevic

Band Parents

Paige Brooks

District Orchestra Parents

Fine Arts Department


Vocational Advisory Boards

Mary Kosirog


Grad Night

Elyssa Siegel


Student artwork featured at Northbrook library

There is an Artist-in-Residence Exhibit on display at the Northbrook Public Library, 1201 Cedar Lane, featuring artwork from 28 GBN students. The exhibit will be on display through October 6. 

'Johns eager to continue D225's tradition of excellence'

After Dr. Mike Riggle called time on his 20-year career at Glenbrook High Schools District 225 in June 2018, district officials launched a nationwide search to find the right person to lead one of Illinois’ best districts into the future.

Dozens of candidates applied, and seven interviewed for the position. After months of searching, the district found its new leader — and he was just 10 miles away in Palatine. 

Read more in the Northbrook Tower
Top 5 Web Searches
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Sept. 2

Labor Day

No School

Sept. 3

6 p.m.


Spartan Conference Room

Sept. 5

6 p.m. 

Driver Education Parent Night

Little Theatre

6 p.m.

Freshman Parent Mtg


6:45 p.m.

Parent Night in the Classroom


Sept. 6

10 a.m.

Late Arrival Day

Sept. 9

7 p.m.

Board of Education Mtg

District Office

7 p.m.


Spartan Conference Room

Sept. 11

7 p.m.

Booster Club Mtg

Green/Gold Conference Room

Sept. 14

ACT Testing

Sept. 16

7:30 p.m.

Grad Night Mtg

Spartan Conference Room

Sept. 18

7 p.m.

Parents’ Assn Mtg

Spartan Conference Room

Sept. 23

7 p.m.

Board of Education Mtg

District Office

Sept. 26-28

Fall Musical


Sept. 27

10 a.m.

Late Arrival Day

Sept. 29-Oct. 5

Homecoming Week

Sept. 30

Rosh Hashanah

No School

2300 Shermer Rd, Northbrook, IL 60062
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