Principia Calendar
Sunday, August 1, 2021 - Tuesday, May 31, 2022

Thursday, August 19

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal (Band Hall) - Band Hall

Thursday, August 26

7:00pm - 8:30pm 

LS Back-to-School Night - LS Classrooms

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal (Band Hall) - Band Hall

Thursday, September 2

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal (Band Hall) - Band Hall

Thursday, September 9

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal (Band Hall) - Band Hall

Saturday, September 11

2:30pm - 4:30pm 

Town & Country Symphony Rehearsal (Ridgway Auditorium)

Sunday, September 12

2:30pm - 4:30pm 

Town & Country Symphony Concert - Ridgway

Thursday, September 16

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal (Band Hall) - Band Hall

Thursday, September 23

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal (Band Hall) - Band Hall

Thursday, September 30

 

US Reunion Weekend

3:30pm - 8:30pm 

LS Parent Conferences

Friday, October 1

 

US Reunion Weekend

8:00am - 3:00pm 

LS No Classes

8:00am - 3:00pm 

LS Parent Conferences

2:15pm 

Band Affinity Alumni Concert - Ridgway Auditorium

Saturday, October 2

 

US Reunion Weekend

Sunday, October 3

 

US Reunion Weekend

Thursday, October 7

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal - Band Hall

Thursday, October 14

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal - Band Hall

Friday, October 15

 

Fall Break-NO SCHOOL (All Levels)

Saturday, October 16

 

Fall Break-NO SCHOOL (All Levels)

Sunday, October 17

 

Fall Break-NO SCHOOL (All Levels)

Monday, October 18

 

Fall Break-NO SCHOOL (All Levels)

Thursday, October 21

8:10am - 12:00pm 

LS Picture Retakes

3:00pm - 3:30pm 

LS 5th Grade Band Concert - LS Music/Band Room

Saturday, October 23

9:00am - 11:00am 

Admissions Community Open House

Friday, October 29

2:00pm - 3:00pm 

LS Halloween Parade and Classroom Parties - LS Classrooms

Saturday, October 30

9:00am - 1:00pm 

Zoo Day - hosted by Admissions/Alumni Relations

9:00am - 1:00pm 

Zoo Day - hosted by Admissions/Alumni Relations

Register for the event at this link: www.principiaalumni.org/stlzoo This will take care of your reservation for the zoo as well.  

2:30pm - 4:30pm 

Town & Country Symphony Rehearsal - Ridgway

Sunday, October 31

2:30pm - 4:30pm 

Town & Country Symphony Concert - Ridgway

5:30pm - 6:30pm 

Halloween Trick-or-Treating at Aron House

For pre-K and lower school students

5:30pm - 6:30pm 

Trick-or-Treating at Aron House

For Pre-K and Lower School students

Thursday, November 4

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal - Band Hall

Tuesday, November 9

6:30pm - 9:00pm 

STL Metro8 Rehearsal - Band-Choir-Jazz Rooms

Thursday, November 11

7:00pm - 9:00pm 

Town & Country Symphony Rehearsal - Band Hall

Saturday, November 20

8:00am - 6:00pm 

STL Metro8 Orchestra - Ridgway Auditorium

Wednesday, November 24

 

Thanksgiving Break

Thursday, November 25

 

Thanksgiving Break

 

Thanksgiving Day

Friday, November 26

 

Thanksgiving Break

Thursday, December 9

 

US/MS/LS/PS Last Day

Saturday, December 11

 

Christmas Break

Sunday, December 12

 

Christmas Break

Monday, December 13

 

Christmas Break

Tuesday, December 14

 

Christmas Break

Wednesday, December 15

 

Christmas Break

Thursday, December 16

 

Christmas Break

Friday, December 17

 

Christmas Break

Saturday, December 18

 

Christmas Break

Sunday, December 19

 

Christmas Break

2:30pm - 4:30pm 

Town & Country Symphony Concert - Ridgway

Monday, December 20

 

Christmas Break

Tuesday, December 21

 

Christmas Break

Wednesday, December 22

 

Christmas Break

Thursday, December 23

 

Christmas Break

Friday, December 24

 

Christmas Break

Saturday, December 25

 

Christmas Break

Sunday, December 26

 

Christmas Break

Monday, December 27

 

Christmas Break

Tuesday, December 28

 

Christmas Break

Wednesday, December 29

 

Christmas Break

Thursday, December 30

 

Christmas Break

Friday, December 31

 

Christmas Break

Saturday, January 1

 

Christmas Break

Sunday, January 2

 

Christmas Break

Tuesday, January 4

 

Classes Resume - All Levels

Monday, January 17

 

Martin Luther King, Jr. Day

 

No School All Levels

Friday, January 21

12:00pm 

Noon dismissal - all levels (for Joint Staff Mtg.)

1:30pm - 4:30pm 

Joint Staff Meeting - College

Monday, January 24

 

Visiting Monday (virtual) - hosted by Admissions

Monday, February 14

2:45pm - 3:30pm 

LS Valentine's Day Parties - LS Classrooms

Wednesday, February 23

2:30pm - 4:30pm 

LS Showcase of Learning

Thursday, February 24

3:30pm - 4:30pm 

LS Showcase of Learning - LS Classrooms

Friday, March 4

 

MS Conferences

Saturday, March 5

9:00am - 11:00am 

Community Open House - hosted by Admissions

Thursday, March 10

3:30pm - 8:30pm 

LS/PS Parent Conferences

Friday, March 11

 

LS/PS No Classes

 

Last Day of Classes

8:00am - 3:30pm 

LS/PS Parent Conferences

Sunday, March 13

 

Daylight Saving Time begins

Monday, March 14

 

Spring Break

Tuesday, March 15

 

Spring Break

Wednesday, March 16

 

Spring Break

Thursday, March 17

 

Spring Break

Friday, March 18

 

Spring Break

Saturday, March 19

 

Spring Break

Sunday, March 20

 

Spring Break

Monday, March 21

 

Spring Break

Tuesday, March 22

 

Spring Break

Wednesday, March 23

 

Spring Break

Thursday, March 24

 

Spring Break

Friday, March 25

 

Spring Break

Sunday, March 27

2:30pm - 4:30pm 

Town & Country Symphony Concert - Ridgway

Monday, March 28

 

Classes Resume - All Levels

Friday, April 1

3:30pm 

LS Festival of Cultures

Friday, April 8

8:00am - 12:00pm 

LS/PS Grandparents Day - noon dismissal

Sunday, April 17

 

Easter Sunday

Monday, May 2

 

LS 5th Grade Trip (tentative)

Tuesday, May 3

 

LS 5th Grade Trip (tentative)

Wednesday, May 4

 

LS 5th Grade Trip (tentative)

Thursday, May 5

 

LS 5th Grade Trip (tentative)

Friday, May 6

 

BioBlitz - all levels (tentative)

 

LS 5th Grade Trip (tentative)

Saturday, May 7

 

BioBlitz - all levels (tentative)

Thursday, May 12

3:00pm - 4:00pm 

LS Music/Band Concert - LS Gym

Thursday, May 19

 

MS/LS/PS Last Day of Classes

Saturday, May 21

6:00pm - 9:00pm 

Big Bash (tentative)

Sunday, May 29

2:30pm - 4:30pm 

Town & Country Symphony Concert - Ridgway

Monday, May 30

 

Memorial Day

Tuesday, May 31

 

Summertime Discovery Begins