Great Valley Sd 2020-2021 Calendar https://greatvalleysd.tandem.co/ Key dates for Great Valley Sd. en-us 8/17/20 - 8/21/20 Induction – New Teachers https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=153 153-greatvalleysd@intand.com 8/24/20 Opening Day – All Staff & Teacher In-Service (Act 80) https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=154 154-greatvalleysd@intand.com 8/25/20 Teacher In-Service (Act 80) https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=155 155-greatvalleysd@intand.com 8/26/20 - 8/28/20 Teacher In-Service https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=156 156-greatvalleysd@intand.com 8/31/20 First Day of School https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=157 157-greatvalleysd@intand.com 9/4/20 No School https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=158 158-greatvalleysd@intand.com 9/7/20 Labor Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=136 136-greatvalleysd@intand.com 9/28/20 No School https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=159 159-greatvalleysd@intand.com 10/12/20 Columbus Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=137 137-greatvalleysd@intand.com 10/21/20 Early Dismissal/Teacher InService https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=160 160-greatvalleysd@intand.com 10/31/20 Halloween https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=138 138-greatvalleysd@intand.com 11/1/20 Daylight Saving Time Ends https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=140 140-greatvalleysd@intand.com 11/2/20 Conferences (1-8:35 pm) https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=161 161-greatvalleysd@intand.com 11/3/20 Conferences (8-3:30 pm) https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=162 162-greatvalleysd@intand.com 11/11/20 Veteran's Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=139 139-greatvalleysd@intand.com 11/25/20 Teacher In-Service https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=163 163-greatvalleysd@intand.com 11/26/20 - 11/27/20 Thanksgiving Break https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=141 141-greatvalleysd@intand.com 12/23/20 Early Dismissal https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=164 164-greatvalleysd@intand.com 12/24/20 - 12/31/20 Winter Break https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=165 165-greatvalleysd@intand.com 12/25/20 Christmas Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=142 142-greatvalleysd@intand.com 1/1/21 New Year's Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=143 143-greatvalleysd@intand.com 1/18/21 Martin Luther King Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=144 144-greatvalleysd@intand.com 1/27/21 Early Dismissal/Teacher InService https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=166 166-greatvalleysd@intand.com 2/14/21 Valentine's Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=145 145-greatvalleysd@intand.com 2/15/21 President's Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=146 146-greatvalleysd@intand.com 3/11/21 Early Dismissal – Conferences https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=167 167-greatvalleysd@intand.com 3/12/21 Conferences (Act 80) https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=168 168-greatvalleysd@intand.com 3/14/21 Daylight Saving Time Begins https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=147 147-greatvalleysd@intand.com 3/17/21 St. Patrick's Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=148 148-greatvalleysd@intand.com 3/29/21 - 4/2/21 Spring Break https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=169 169-greatvalleysd@intand.com 4/4/21 Easter https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=149 149-greatvalleysd@intand.com 4/5/21 Teacher In-Service (Act 80) https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=170 170-greatvalleysd@intand.com 5/5/21 Cinco De Mayo https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=150 150-greatvalleysd@intand.com 5/19/21 Early Dismissal/Teacher InService https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=171 171-greatvalleysd@intand.com 5/31/21 Memorial Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=151 151-greatvalleysd@intand.com 6/10/21 Last Day of School https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=172 172-greatvalleysd@intand.com 6/11/21 Teacher In-Service https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=173 173-greatvalleysd@intand.com 7/4/21 Independence Day https://greatvalleysd.tandem.co/index.php?type=key_date&action=details&id=152 152-greatvalleysd@intand.com