Prospect Heights School District 23 Calendar 2026
Public holiday
Regional Holiday
Observance
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Events in 2026
| Date | Event | Description | Location | ||
|---|---|---|---|---|---|
| Mon, January 05, 2026 | Teacher Institute Day - Students NOT in Attendance |
Mon, January 05, 2026
Teacher Institute Day - Students NOT in Attendance |
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| Tue, January 06, 2026 | Teacher Institute Day - Students NOT in Attendance |
Tue, January 06, 2026
Teacher Institute Day - Students NOT in Attendance |
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| Wed, January 07, 2026 | Classes Resume |
Wed, January 07, 2026
Classes Resume |
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| Thu, January 08, 2026 | Erin's Law Presentations (Ike and Mac) |
Thu, January 08, 2026
Erin's Law Presentations (Ike and Mac) |
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| Thu, January 08, 2026 | Board of Education Meeting 19:00 - 22:00 | Grodsky Admin Building |
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| Fri, January 09, 2026 | Erin's Law Presentations (Ross and Sullivan) |
Fri, January 09, 2026
Erin's Law Presentations (Ross and Sullivan) |
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| Wed, January 14, 2026 | ACCESS for ELLs (& Alternate ACCESS) Window (Grades K-12) |
Wed, January 14, 2026
ACCESS for ELLs (& Alternate ACCESS) Window (Grades K-12) |
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| Wed, January 14, 2026 | PTO Pizza Pavia Dining Night Out | Mention D23 Dining Night Out Event at time of purchase for 15% | Pizza Pavia, 6 N Elmhurst Rd, Prospect Heights, IL 60070, USA |
Wed, January 14, 2026
PTO Pizza Pavia Dining Night Out Mention D23 Dining Night Out Event at time of purchase for 15% Location: Pizza Pavia, 6 N Elmhurst Rd, Prospect Heights, IL 60070, USA |
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| Thu, January 15, 2026 | African Storytelling Reimagined Assembly 08:30 - 09:30 |
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| Fri, January 16, 2026 | Quarter 2 Ends |
Fri, January 16, 2026
Quarter 2 Ends |
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| Fri, January 16, 2026 | Early Childhood Screening (AM Only) 08:45 - 11:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Fri, January 16, 2026
Early Childhood Screening (AM Only) 08:45 - 11:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Mon, January 19, 2026 | Martin Luther King Day - No School |
Mon, January 19, 2026
Martin Luther King Day - No School |
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| Tue, January 20, 2026 | Quarter 3 Starts |
Tue, January 20, 2026
Quarter 3 Starts |
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| Thu, January 22, 2026 | Succession Planning Committee 09:00 - 10:00 |
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| Thu, January 29, 2026 | Eisenhower Math & Science Night 17:00 - 19:00 |
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| Fri, January 30, 2026 | Kids Night Out Movie Night 18:45 - 21:00 | Ross/Sullivan Gym |
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| Mon, February 02, 2026 | Spring SAEBRS Benchmarking Window |
Mon, February 02, 2026
Spring SAEBRS Benchmarking Window |
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| Tue, February 03, 2026 | Buildings and Sites Meeting 08:30 - 09:30 |
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| Tue, February 03, 2026 | Finance Committee Meeting 18:00 - 19:00 |
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| Thu, February 05, 2026 | Kindergarten Registration 08:30 - 20:00 |
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| Thu, February 05, 2026 | Spring Parent Teacher Conferences 16:30 - 20:00 |
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| Mon, February 09, 2026 | PTO General Meeting 19:00 - 20:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Mon, February 09, 2026
PTO General Meeting 19:00 - 20:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Tue, February 10, 2026 | Succession Planning Committee 14:30 - 15:30 |
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| Thu, February 12, 2026 | Kindergarten Registration 08:30 - 20:00 |
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| Thu, February 12, 2026 | Eisenhower Valentines Day AM EC & AM Kdg. Parties 09:30 - 10:30 |
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| Thu, February 12, 2026 | PM EC PM Kdg. Full Day Kdg. & 1st Grade Valentines Day Partie 13:15 - 14:15 |
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| Thu, February 12, 2026 | Ross/Sullivan Valentine's Day Parties 13:30 - 14:30 |
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| Thu, February 12, 2026 | Spring Parent Teacher Conferences 16:30 - 20:00 |
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| Thu, February 12, 2026 | Board of Education Meeting 19:00 - 22:00 | Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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Thu, February 12, 2026
Board of Education Meeting 19:00 - 22:00 Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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| Fri, February 13, 2026 | Non-Attendance Day - District Office Closed |
Fri, February 13, 2026
Non-Attendance Day - District Office Closed |
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| Mon, February 16, 2026 | Presidents' Day No School |
Mon, February 16, 2026
Presidents' Day No School |
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| Tue, February 17, 2026 | PTO Nostimo's Dining Night Out | The event runs from 11 AM to 9 PM. Please mention D23 at checko | Nostimo Greek Kitchen, 286 W Rand Rd, Arlington Heights, IL 600 |
Tue, February 17, 2026
PTO Nostimo's Dining Night Out The event runs from 11 AM to 9 PM. Please mention D23 at checko Location: Nostimo Greek Kitchen, 286 W Rand Rd, Arlington Heights, IL 600 |
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| Tue, February 17, 2026 | Superintendent's Advisory Council 18:00 - 19:30 | Join with Google Meet: https://meet.google.com/gmp-xvct-cjo Or |
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| Thu, February 19, 2026 | Ross (2nd Grade) STEAM Club 14:45 - 15:30 |
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| Thu, February 19, 2026 | BPAC Night 17:30 - 19:00 | Prospect Heights Public Library District, 12 Elm St, Prospect He |
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Thu, February 19, 2026
BPAC Night 17:30 - 19:00 Location: Prospect Heights Public Library District, 12 Elm St, Prospect He |
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| Fri, February 20, 2026 | Early Childhood Non-Attendance Day |
Fri, February 20, 2026
Early Childhood Non-Attendance Day |
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| Fri, February 20, 2026 | Early Childhood Screening (AM Only) 08:45 - 11:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Fri, February 20, 2026
Early Childhood Screening (AM Only) 08:45 - 11:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Tue, February 24, 2026 | Sullivan Literacy Night 17:30 - 19:00 |
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| Wed, February 25, 2026 | Solo and Ensemble 15:00 - 19:00 |
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| Thu, February 26, 2026 | Ross (2nd Grade) STEAM Club 14:45 - 15:30 |
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| Thu, February 26, 2026 | SAIL Program Family Night 17:00 - 18:00 | PH Library |
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| Thu, February 26, 2026 | Be a Good Neighbor Event 18:30 - 19:30 | Meet in the Hendrickson Room.Register here: Arlington Heights Memorial Library, 500 N Dunton Ave, Arlington |
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Thu, February 26, 2026
Be a Good Neighbor Event 18:30 - 19:30 Meet in the Hendrickson Room.Register here: Arlington Heights Memorial Library, 500 N Dunton Ave, Arlington |
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| Fri, February 27, 2026 | Trimester 2 Ends |
Fri, February 27, 2026
Trimester 2 Ends |
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| Fri, February 27, 2026 | D23 Pickle Ball Social 15:00 - 16:30 | MacArthur Middle School 700 N Schoenbeck Rd, Prospect Heights, |
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Fri, February 27, 2026
D23 Pickle Ball Social 15:00 - 16:30 Location: MacArthur Middle School 700 N Schoenbeck Rd, Prospect Heights, |
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| Fri, February 27, 2026 | D23 Social 16:30 - 18:00 | Sports Page Bar & Grill Arlington Heights, 1330 E Rand Rd, Arlin |
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Fri, February 27, 2026
D23 Social 16:30 - 18:00 Location: Sports Page Bar & Grill Arlington Heights, 1330 E Rand Rd, Arlin |
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| Mon, March 02, 2026 | Illinois Assessment of Readiness (IAR) (Gr. 3-8) |
Mon, March 02, 2026
Illinois Assessment of Readiness (IAR) (Gr. 3-8) |
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| Mon, March 02, 2026 | Illinois Science Assessment (ISA) (Gr. 5 & 8) |
Mon, March 02, 2026
Illinois Science Assessment (ISA) (Gr. 5 & 8) |
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| Mon, March 02, 2026 | Trimester 3 Begins |
Mon, March 02, 2026
Trimester 3 Begins |
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| Tue, March 03, 2026 | Buildings and Sites Committee Meeting 08:30 - 09:30 |
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| Tue, March 03, 2026 | Finance Committee Meeting 18:00 - 19:00 |
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| Thu, March 05, 2026 | Ross (2nd Grade) STEAM Club 14:45 - 15:30 |
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| Thu, March 05, 2026 | Eisenhower Family Literacy Night 17:00 - 19:00 |
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| Fri, March 06, 2026 | Report Cards Available |
Fri, March 06, 2026
Report Cards Available |
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| Fri, March 06, 2026 | SOILL Cool School Challenge (Polar Plunge) |
Fri, March 06, 2026
SOILL Cool School Challenge (Polar Plunge) |
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| Fri, March 06, 2026 | Sullivan Musical 19:00 - 20:00 | MacArthur Middle School, 700 N Schoenbeck Rd, Prospect Heights, |
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Fri, March 06, 2026
Sullivan Musical 19:00 - 20:00 Location: MacArthur Middle School, 700 N Schoenbeck Rd, Prospect Heights, |
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| Mon, March 09, 2026 | PHPL Youth Artist Reception 16:30 - 18:30 | Prospect Heights Public Library District, 12 Elm St, Prospect He |
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Mon, March 09, 2026
PHPL Youth Artist Reception 16:30 - 18:30 Location: Prospect Heights Public Library District, 12 Elm St, Prospect He |
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| Mon, March 09, 2026 | Sullivan Band Concert 18:00 - 20:00 |
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| Tue, March 10, 2026 | PTO Raising Cane's Dining Night Out Event until 23:00 | From 11 AM to 9 PM! Orders can be placed online using code R |
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| Wed, March 11, 2026 | Dynamic Learning Maps Alternate Assessment (DLM-AA) for Grades 3-8 |
Wed, March 11, 2026
Dynamic Learning Maps Alternate Assessment (DLM-AA) for Grades 3-8 |
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| Wed, March 11, 2026 | MacArthur Band Concert 18:00 - 20:00 |
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| Thu, March 12, 2026 | Ross (2nd Grade) STEAM Club 13:45 - 14:30 |
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| Thu, March 12, 2026 | Board of Education Meeting 18:00 - 21:00 | Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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Thu, March 12, 2026
Board of Education Meeting 18:00 - 21:00 Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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| Fri, March 13, 2026 | Family Fun Night at Mac until 23:00 |
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| Fri, March 13, 2026 | Early Childhood Screening (AM Only) 07:45 - 10:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Fri, March 13, 2026
Early Childhood Screening (AM Only) 07:45 - 10:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Fri, March 13, 2026 | PTO Family Fun Night 16:00 - 18:00 | MacArthur Middle School, 700 N Schoenbeck Rd, Prospect Heights, |
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Fri, March 13, 2026
PTO Family Fun Night 16:00 - 18:00 Location: MacArthur Middle School, 700 N Schoenbeck Rd, Prospect Heights, |
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| Mon, March 16, 2026 | MacArthur Chorus Concert 18:00 - 20:00 |
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| Tue, March 17, 2026 | Non-Attendance Day - District Office Open until 23:00 |
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| Wed, March 18, 2026 | Sullivan Orchestra Concert 18:00 - 20:00 |
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| Thu, March 19, 2026 | MacArthur Orchestra Concert 18:00 - 20:00 |
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| Fri, March 20, 2026 | Quarter 3 Ends until 23:00 |
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| Mon, March 23, 2026 | Spring Vacation - District Office Open |
Mon, March 23, 2026
Spring Vacation - District Office Open |
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| Mon, March 30, 2026 | Quarter 4 Begins until 23:00 |
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| Mon, March 30, 2026 | Spring i-Ready Diagnostic Window | D23 Schools |
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| Tue, March 31, 2026 | Buildings and Sites Committee Meeting 07:30 - 08:30 |
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| Tue, March 31, 2026 | Finance Committee Meeting 17:00 - 18:00 |
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| Wed, April 01, 2026 | Ross (2nd Grade) Play and Create Club 13:45 - 14:30 |
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| Thu, April 02, 2026 | Ross (3rd Grade) Play and Create Club 13:45 - 14:30 |
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| Fri, April 03, 2026 | Non-Attendance Day - District Office Closed until 23:00 |
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| Mon, April 06, 2026 | (3rd Grade) IAR Assessment |
Mon, April 06, 2026
(3rd Grade) IAR Assessment |
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| Wed, April 08, 2026 | D23 Heritage Night 16:00 - 18:00 | MacArthur Middle School |
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| Thu, April 09, 2026 | Ross (3rd Grade) STEAM Club 13:45 - 14:30 |
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| Thu, April 09, 2026 | Board of Education Meeting 18:00 - 21:00 | Betsy Ross Elementary School, 700 N Schoenbeck Rd, Prospect Heig |
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Thu, April 09, 2026
Board of Education Meeting 18:00 - 21:00 Betsy Ross Elementary School, 700 N Schoenbeck Rd, Prospect Heig |
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| Thu, April 09, 2026 | MacArthur Musical 18:00 - 20:00 |
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| Fri, April 10, 2026 | Early Childhood Non-Attendance Day until 23:00 |
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| Fri, April 10, 2026 | Early Childhood Screening (AM Only) 07:45 - 10:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Fri, April 10, 2026
Early Childhood Screening (AM Only) 07:45 - 10:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Fri, April 10, 2026 | MacArthur Musical 18:00 - 20:00 |
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| Wed, April 15, 2026 | Ross (2nd Grade) Play and Create Club 13:45 - 14:30 |
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| Thu, April 16, 2026 | Ross (3rd Grade) STEAM Club 13:45 - 14:30 |
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| Thu, April 16, 2026 | Ross (3rd Grade) Play and Create Club 13:45 - 14:30 |
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| Wed, April 22, 2026 | Ross (2nd Grade) Play and Create Club 13:45 - 14:30 |
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| Thu, April 23, 2026 | Ross (3rd Grade) STEAM Club 13:45 - 14:30 |
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| Thu, April 23, 2026 | Ross (3rd Grade) Play and Create Club 13:45 - 14:30 |
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| Fri, April 24, 2026 | Kids Night Out Movie Night until 23:00 |
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| Fri, April 24, 2026 | 8th Gr. Harper Trip 08:00 - 10:00 |
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| Fri, April 24, 2026 | PTO Movie Night 17:00 - 20:00 |
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| Wed, April 29, 2026 | Superintendent's Advisory Council 17:00 - 18:30 | Join with Google Meet: https://meet.google.com/mbw-xnfb-fbq Or |
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| Thu, April 30, 2026 | BPAC Día del Niña 16:30 - 18:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Thu, April 30, 2026
BPAC Día del Niña 16:30 - 18:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Fri, May 01, 2026 | Art & Music Night 17:00 - 19:00 |
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| Mon, May 04, 2026 | Civics Night 16:00 - 18:00 |
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| Tue, May 05, 2026 | Finance Committee Meeting 17:00 - 18:00 |
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| Wed, May 06, 2026 | Eisenhower/Sullivan Caps ice cream Coolest School event 14:00 - 20:00 |
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| Wed, May 06, 2026 | Sullivan Orchestra Concert 18:00 - 20:00 |
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| Fri, May 08, 2026 | Early Childhood Screening (AM Only) 07:45 - 10:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Fri, May 08, 2026
Early Childhood Screening (AM Only) 07:45 - 10:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Mon, May 11, 2026 | Chorus Concert 18:00 - 20:00 |
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| Wed, May 13, 2026 | MacArthur Band Concert 18:00 - 20:00 |
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| Thu, May 14, 2026 | Eisenhower Young Athletes Day 07:00 - 14:00 | AM Session: 8:15-10:30 AM PM Session: 12:00-2:15 PM |
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| Thu, May 14, 2026 | Board of Education Meeting 18:00 - 21:00 | Grodsky Administration Building |
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| Fri, May 15, 2026 | SAILabration 11:30 - 13:00 |
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| Mon, May 18, 2026 | Sullivan Band Concert 18:00 - 19:00 |
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| Tue, May 19, 2026 | 5th Grade Parent Night 17:00 - 18:30 |
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| Wed, May 20, 2026 | PTO General Meeting-Volunteer Breakfast 08:00 - 09:00 | MacArthur Middle School, 710 N Schoenbeck Rd, Prospect Heights, |
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Wed, May 20, 2026
PTO General Meeting-Volunteer Breakfast 08:00 - 09:00 Location: MacArthur Middle School, 710 N Schoenbeck Rd, Prospect Heights, |
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| Wed, May 20, 2026 | MacArthur Orchestra Concert 18:00 - 20:00 |
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| Thu, May 21, 2026 | PTO Portillo's Dining Night Out until 23:00 | 11 AM to 8 PMPlease present Portillo's Arlington Heights |
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Thu, May 21, 2026
PTO Portillo's Dining Night Out until 23:00 11 AM to 8 PMPlease present Portillo's Arlington Heights |
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| Fri, May 22, 2026 | School Improvement Day - Students NOT in Attendance until 23:00 |
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| Mon, May 25, 2026 | Memorial Day - No School until 23:00 |
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| Mon, May 25, 2026 | Arlington Heights Memorial Day Parade 08:00 - 22:00 |
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| Tue, May 26, 2026 | 8th Gr. Send Off 12:15 - 13:00 | Prospect Heights School District 23, 700 N Schoenbeck Rd, Prospe |
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Tue, May 26, 2026
8th Gr. Send Off 12:15 - 13:00 Location: Prospect Heights School District 23, 700 N Schoenbeck Rd, Prospe |
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| Tue, May 26, 2026 | Ross/MacArthur Caps ice cream Coolest School event 14:00 - 20:00 |
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| Wed, May 27, 2026 | 8th Gr. Send Off (Rain Date) until 23:00 | Prospect Heights School District 23, 700 N Schoenbeck Rd, Prospe |
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Wed, May 27, 2026
8th Gr. Send Off (Rain Date) until 23:00 Location: Prospect Heights School District 23, 700 N Schoenbeck Rd, Prospe |
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| Wed, May 27, 2026 | End of Year Celebration (Ice Cream Social) until 23:00 |
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| Wed, May 27, 2026 | D23 School's Out Celebration - Kona Ice Event 14:30 - 16:30 | Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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Wed, May 27, 2026
D23 School's Out Celebration - Kona Ice Event 14:30 - 16:30 Location: Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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| Thu, May 28, 2026 | 8th Grade Dance 17:00 - 19:00 |
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| Fri, May 29, 2026 | Early Childhood Picnic until 23:00 |
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| Fri, May 29, 2026 | Last Day for Early Childhood until 23:00 |
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| Fri, May 29, 2026 | 8th Grade Promotion (Hersey High School) 18:00 - 19:00 |
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| Mon, June 01, 2026 | Ross/Sullivan Field Day 07:00 - 14:00 |
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| Tue, June 02, 2026 | Ross/Sullivan Field Day (Rain Date) 07:00 - 14:00 |
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| Tue, June 02, 2026 | Buildings and Sites Committee Meeting 07:30 - 08:30 |
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| Tue, June 02, 2026 | Finance Committee Meeting 17:00 - 18:00 |
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| Wed, June 03, 2026 | Last Day of Classes Grades K-8 until 23:00 |
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| Wed, June 03, 2026 | Quarter 4 Ends until 23:00 |
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| Wed, June 03, 2026 | Reports Cards Available until 23:00 |
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| Wed, June 03, 2026 | Trimester 3 Ends until 23:00 |
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| Thu, June 11, 2026 | Board of Education Meeting 18:00 - 21:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Thu, June 11, 2026
Board of Education Meeting 18:00 - 21:00 Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Fri, June 12, 2026 | D23 Day at the Dogs 17:30 - 20:30 | JOIN THE D23 COMMUNITY FOR A FUN EVENING AT THE BALLPARK! T | Impact Field 9850 Balmoral Ave, Rosemont, IL 60018, United St |
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Fri, June 12, 2026
D23 Day at the Dogs 17:30 - 20:30 JOIN THE D23 COMMUNITY FOR A FUN EVENING AT THE BALLPARK! T Location: Impact Field 9850 Balmoral Ave, Rosemont, IL 60018, United St |
| Wed, June 17, 2026 | Succession Planning Committee 11:00 - 12:00 |
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| Fri, June 19, 2026 | Juneteenth-District Office Closed until 23:00 |
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| Sat, July 04, 2026 | Prospect Heights 4th of July Parade 09:30 - 10:45 |
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| Thu, July 09, 2026 | Cancelled - Board of Education Meeting 18:00 - 21:00 | Grodsky Administration Building |
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Thu, July 09, 2026
Cancelled - Board of Education Meeting 18:00 - 21:00 Grodsky Administration Building |
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| Thu, August 13, 2026 | Board of Education Meeting 18:00 - 21:00 | Grodsky Administration Building |
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| Sat, August 15, 2026 | Early Childhood Playdate 09:00 - 10:00 |
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| Sat, August 15, 2026 | Kindergarten Playdate 10:00 - 22:00 |
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| Mon, August 17, 2026 | Teacher Institute Day - Students NOT in Attendance until 23:00 |
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| Tue, August 18, 2026 | SIP Day - Students NOT in Attendance until 23:00 |
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| Tue, August 18, 2026 | Ike Sneak Peek 07:00 - 07:30 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Tue, August 18, 2026
Ike Sneak Peek 07:00 - 07:30 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Tue, August 18, 2026 | Ross/Sullivan Sneak Peek 07:45 - 08:15 |
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| Wed, August 19, 2026 | First Day of Classes (1st-8th)/FULL DAY of Student Attendance until 23:00 |
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| Thu, August 20, 2026 | First Day of Early Childhood until 23:00 |
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| Thu, August 27, 2026 | First Day of Kindergarten until 23:00 |
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| Thu, August 27, 2026 | PTO General Meeting until 23:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Thu, August 27, 2026
PTO General Meeting until 23:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Thu, August 27, 2026 | Eisenhower Back to School Night 17:00 - 18:00 |
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| Mon, August 31, 2026 | D23 Fall i-Ready Window |
Mon, August 31, 2026
D23 Fall i-Ready Window |
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| Tue, September 01, 2026 | Sullivan Band/Orchestra Sign Up Night 17:00 - 19:00 |
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| Tue, September 01, 2026 | Parent Night (6th) 17:30 - 18:30 |
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| Wed, September 02, 2026 | Parent Night (7th/8th) 17:30 - 18:30 |
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| Thu, September 03, 2026 | Ross/Sullivan Back to School Night 17:00 - 18:00 |
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| Mon, September 07, 2026 | Labor Day - No School until 23:00 |
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| Tue, September 08, 2026 | Buildings and Sites Committee Meeting 07:30 - 08:30 |
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| Tue, September 08, 2026 | Finance Committee 17:00 - 18:00 |
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| Thu, September 10, 2026 | PTO Parent Mixer 18:00 - 20:00 |
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| Fri, September 11, 2026 | Early Childhood Screening 07:45 - 10:00 |
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| Fri, September 11, 2026 | 911 Memorial Celebration 08:00 - 09:30 |
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| Mon, September 14, 2026 | Succession Planning Committee 10:30 - 22:15 |
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| Tue, September 15, 2026 | Succession Planning Committee 15:00 - 15:45 |
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| Thu, September 17, 2026 | Board of Education Meeting 18:00 - 21:00 | Grodsky Administration Building |
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| Mon, September 21, 2026 | Non-Attendance Day - District Office Closed until 23:00 |
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| Mon, September 21, 2026 | PTO Chuck E. Cheese Day Off until 23:00 | Chuck E. Cheese, 41 W Rand Rd, Arlington Heights, IL 60004, US |
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Mon, September 21, 2026
PTO Chuck E. Cheese Day Off until 23:00 Location: Chuck E. Cheese, 41 W Rand Rd, Arlington Heights, IL 60004, US |
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| Tue, September 22, 2026 | Building a Better D23 Community Forum 14:30 - 15:30 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Tue, September 22, 2026
Building a Better D23 Community Forum 14:30 - 15:30 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Thu, September 24, 2026 | Community Relations Committee 14:30 - 15:30 |
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| Fri, September 25, 2026 | D23 Family Fest 15:00 - 17:30 |
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| Tue, September 29, 2026 | Buildings and Sites Committee Meeting 07:00 - 08:00 |
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| Wed, September 30, 2026 | PTO General Meeting until 23:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Wed, September 30, 2026
PTO General Meeting until 23:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Thu, October 01, 2026 | Fall SAEBRS Window |
Thu, October 01, 2026
Fall SAEBRS Window |
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| Tue, October 06, 2026 | Board Candidate Forum 17:00 - 18:00 |
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| Tue, October 06, 2026 | Building a Better D23 Community Forum 17:30 - 18:30 | Grodsky Administration Building |
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Tue, October 06, 2026
Building a Better D23 Community Forum 17:30 - 18:30 Location: Grodsky Administration Building |
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| Thu, October 08, 2026 | Board of Education Meeting 18:00 - 21:00 | MacArthur Middle School, 700 N Schoenbeck Rd, Prospect Heights, |
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Thu, October 08, 2026
Board of Education Meeting 18:00 - 21:00 MacArthur Middle School, 700 N Schoenbeck Rd, Prospect Heights, |
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| Fri, October 09, 2026 | Early Childhood Non-Attendance Day until 23:00 |
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| Fri, October 09, 2026 | Early Childhood Screening 07:45 - 10:00 |
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| Mon, October 12, 2026 | Teacher Institute Day - Students NOT in Attendance until 23:00 |
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| Tue, October 13, 2026 | MacArthur Civics Night 15:30 - 17:30 | Theme: Individual voice leads to power in choice. < | Mac Little Theatre |
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Tue, October 13, 2026
MacArthur Civics Night 15:30 - 17:30 Theme: Individual voice leads to power in choice. < Location: Mac Little Theatre |
| Wed, October 14, 2026 | Purposeful Technology Focus Group 16:00 - 17:00 | Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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Wed, October 14, 2026
Purposeful Technology Focus Group 16:00 - 17:00 Location: Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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| Thu, October 15, 2026 | Eisenhower Ross Sullivan Family Literacy Night 16:00 - 17:30 |
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| Fri, October 16, 2026 | X-Country Send-Off 09:15 - 09:30 |
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| Mon, October 19, 2026 | KIDS Assessment Data Entry Window |
Mon, October 19, 2026
KIDS Assessment Data Entry Window |
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| Mon, October 19, 2026 | Succession Planning Committee 11:30 - 12:15 |
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| Wed, October 21, 2026 | BBD23 Community Forum 17:30 - 18:30 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Wed, October 21, 2026
BBD23 Community Forum 17:30 - 18:30 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Thu, October 22, 2026 | BPAC Night 16:30 - 18:00 |
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| Fri, October 23, 2026 | End of Q1 until 23:00 |
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| Fri, October 23, 2026 | PTO Trunk or Treat 16:00 - 18:00 |
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| Fri, October 30, 2026 | AM EC & AM Kdg. Parade 08:00 - 08:30 |
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| Fri, October 30, 2026 | AM EC & AM Kdg. Halloween Parties 08:30 - 09:30 |
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| Fri, October 30, 2026 | PM EC PM Kdg. & 1st Grade Halloween Parade 11:00 - 22:30 |
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| Fri, October 30, 2026 | Ross/Sullivan Halloween Parade 12:00 - 12:30 |
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| Fri, October 30, 2026 | PM EC PM Kdg. & 1st Grade Halloween Parties 12:15 - 13:15 |
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| Fri, October 30, 2026 | Ross/Sullivan Halloween Classroom Parties 12:30 - 13:30 |
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| Mon, November 02, 2026 | Non-Attendance Day - District Office Open |
Mon, November 02, 2026
Non-Attendance Day - District Office Open |
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| Tue, November 03, 2026 | Election Day - No School |
Tue, November 03, 2026
Election Day - No School |
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| Thu, November 05, 2026 | Fall Parent Teacher Conferences 16:30 - 20:00 |
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| Thu, November 12, 2026 | Fall Parent Teacher Conferences 16:30 - 20:00 |
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| Thu, November 12, 2026 | Board of Education Meeting 19:00 - 22:00 | Grodsky Administrtion Building |
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| Fri, November 13, 2026 | Early Childhood Non-Attendance Day |
Fri, November 13, 2026
Early Childhood Non-Attendance Day |
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| Fri, November 13, 2026 | Early Childhood Screening 08:45 - 11:00 |
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| Tue, November 17, 2026 | IKE Ross Sullivan Cosmic Bowling Night 15:30 - 19:00 |
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| Wed, November 18, 2026 | IKE Ross Sullivan Cosmic Bowling Night 15:30 - 19:00 |
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| Thu, November 19, 2026 | AM Early Childhood Thanksgiving Feast 09:15 - 10:30 |
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| Thu, November 19, 2026 | PM Early Childhood Thanksgiving Feast 12:45 - 14:00 |
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| Thu, November 19, 2026 | SAIL Night 17:00 - 18:00 | Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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Thu, November 19, 2026
SAIL Night 17:00 - 18:00 Location: Dwight D. Eisenhower Elementary School, 1 N Schoenbeck Rd, Mt Pr |
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| Fri, November 20, 2026 | End of 1st Trimester |
Fri, November 20, 2026
End of 1st Trimester |
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| Mon, November 23, 2026 | Non-Attendance Day - District Office Open |
Mon, November 23, 2026
Non-Attendance Day - District Office Open |
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| Wed, November 25, 2026 | Thanksgiving Holiday - No School - District Office Closed 11/25-11/ |
Wed, November 25, 2026
Thanksgiving Holiday - No School - District Office Closed 11/25-11/ |
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| Mon, November 30, 2026 | D23 Winter i-Ready Window |
Mon, November 30, 2026
D23 Winter i-Ready Window |
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| Fri, December 04, 2026 | T1 Report Cards Available 10AM |
Fri, December 04, 2026
T1 Report Cards Available 10AM |
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| Wed, December 09, 2026 | Purposeful Technology Focus Group 17:00 - 18:00 | Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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Wed, December 09, 2026
Purposeful Technology Focus Group 17:00 - 18:00 Location: Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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| Wed, December 09, 2026 | 4-8 Orchestra Concert 18:00 - 20:00 |
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| Fri, December 11, 2026 | Early Childhood Screening 08:45 - 11:00 |
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| Fri, December 11, 2026 | BPAC Night 17:30 - 19:00 |
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| Mon, December 14, 2026 | Sullivan Band and Chorus Concert 18:30 - 19:30 |
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| Wed, December 16, 2026 | Early Childhood AM Winter Concert 10:00 - 10:45 |
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| Wed, December 16, 2026 | Early Childhood PM Winter Concert 13:30 - 14:15 |
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| Wed, December 16, 2026 | MacArthur Chorus Concert 19:00 - 20:00 |
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| Thu, December 17, 2026 | Board of Education Meeting 19:00 - 22:00 | Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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Thu, December 17, 2026
Board of Education Meeting 19:00 - 22:00 Anne Sullivan Elementary School, 710 N Schoenbeck Rd, Prospect H |
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| Fri, December 18, 2026 | AM EC & AM Kdg. Winter Parties 09:30 - 10:30 |
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| Fri, December 18, 2026 | PM EC AM Kdg. & 1st Grade Winter Parties 13:15 - 14:15 |
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| Mon, December 21, 2026 | Winter Vacation - District Office Open (12/21-23) |
Mon, December 21, 2026
Winter Vacation - District Office Open (12/21-23) |
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| Thu, December 24, 2026 | Winter Vacation - District Office Closed 12/24 & 12/25 |
Thu, December 24, 2026
Winter Vacation - District Office Closed 12/24 & 12/25 |
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| Mon, December 28, 2026 | Winter Vacation - District Office Open (12/28-30) |
Mon, December 28, 2026
Winter Vacation - District Office Open (12/28-30) |
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| Thu, December 31, 2026 | Winter Vacation - District Office Closed 12/31 & 1/1 |
Thu, December 31, 2026
Winter Vacation - District Office Closed 12/31 & 1/1 |
