Prospect Heights School District 23 PTO

For more information on District and School events, please see our District Calendar page, HERE.

<<	April 2026					>>
Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
29 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8)	30 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Quarter 4 Begins Spring i-Ready Diagnostic Window 1:00p Community Relations Committee	31 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window 8:30a Buildings and Sites Committee Meeting	1 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	2 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	3 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window Non-Attendance Day - District Office Closed	4 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window
5 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	6 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window (3rd Grade) IAR Assessment	7 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window (3rd Grade) IAR Assessment	8 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window (3rd Grade) IAR Assessment 5:00p D23 Heritage Night	9 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window (3rd Grade) IAR Assessment 2:45p Ross (3rd Grade) STEAM Club 7:00p Board of Education Meeting 7:00p MacArthur Musical	10 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window (3rd Grade) IAR Assessment Early Childhood Non-Attendance Day 8:45a Early Childhood Screening (AM Only) 7:00p MacArthur Musical	11 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window
12 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	13 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	14 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	15 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window 2:45p Ross (2nd Grade) Play and Create Club	16 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window 2:45p Ross (3rd Grade) STEAM Club 2:45p Ross (3rd Grade) Play and Create Club	17 Illinois Assessment of Readiness (IAR) (Gr. 3-8) Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	18 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window
19 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	20 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	21 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	22 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window 2:45p Ross (2nd Grade) Play and Create Club	23 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window 2:45p Ross (3rd Grade) STEAM Club 2:45p Ross (3rd Grade) Play and Create Club	24 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window Kids Night Out Movie Night 9:00a 8th Gr. Harper Trip 6:00p PTO Movie Night	25 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window
26 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	27 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	28 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window	29 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window 2:45p Ross (2nd Grade) Play and Create Club 6:00p Superintendent's Advisory Council	30 Illinois Science Assessment (ISA) (Gr. 5 & 8) Spring i-Ready Diagnostic Window 2:45p Ross (3rd Grade) STEAM Club 2:45p Ross (3rd Grade) Play and Create Club 5:30p BPAC Día del Niña	1 Spring i-Ready Diagnostic Window 6:00p Art & Music Night	2 Spring i-Ready Diagnostic Window