http://www.uft.org/member/contracts/teacher/article17/?mainMenuItemToSlide=13
CHECK OUT ARTICLE 17B Rule1
Rule 1. Within the school, district or other organizational unit, the
teacher with the least seniority within license will be the first to be
excessed, and probationers will be excessed before those who have
completed probation; except that elementary school teachers of common
branches and early childhood will be grouped together and elementary
school teachers of common branches (bilingual) and early childhood
(bilingual) according to language will be grouped together for purposes
of excessing.