The Toronto District School Board informed parents Wednesday it is closing all of its schools for a new professional activity day on Friday, April 15, 2016.

The new P.A. day has been mandated by the Ministry of Education through labour negotiations, according to a letter sent out by the TDSB. 

"On this day, teachers will be taking part in professional development on provincial education priorities identified by the Minister of Education," the board said Wednesday in a letter to parents.

The TDSB said most before-and-after school programs will offer full-day care for children registered in the program on the P.A. day, but the board is asking parents to get in touch with their local school for further details.