THE PUBLIC SCHOOL DIRECTORY

Find your school’s calendar.

Mastery CS-Gratz Campus Calendar — Philadelphia, PA · Chaos Coordinator

Mastery CS-Gratz Campus

Philadelphia, PA · Mastery CS-Gratz Campus · Grades 7–12

Follow Mastery CS-Gratz Campus and get a push when its calendar changes.

Anyone can read the verified public calendar below. Sign in only if you want alerts or district-claim access.

Published by Mastery Schools. Last verified November 13, 2026. View the original calendar

Wed, Nov 25 · All day — Thanksgiving Break
Thu, Dec 3 · 12:30 PM — Mastery Parent Action Team (MPAT) Meeting · https://masterycharter.org/event/mastery-parent-action-team-mpat-meeting-2/
Fri, Dec 11 · All day — Professional Development Day
Wed, Dec 23 · All day — Winter Break Early Release
Thu, Dec 24 · All day — Winter Break
Wed, Jan 6 · All day — Three Kings Day
Mon, Jan 18 · All day — Martin Luther King Jr. Day
Fri, Jan 22 · All day — Professional Development Day
Tue, Feb 9 · All day — Report Period 2 Report Card Conferences
Wed, Feb 10 · All day — Report Period 2 Report Card Conferences NJ (9-12)

Mastery CS-Gratz Campus athletics calendar (district-wide)1 upcoming event

Published by Mastery Schools. Last verified November 13, 2026. View the original calendar

Mastery CS-Gratz Campus — Mastery Schools 2026 - 2027 CALENDAR (district-wide)11 upcoming events

Published by Mastery Schools. Last verified November 13, 2026. View the original calendar

Chaos Coordinator was built by a dad in Michigan for his own family.