Bilingual and ESL Education Staff Olivia Pérez Director of Bilingual/ESL (972) 968-6143 perezo@cfbisd.edu Deborah Sisco Department Secretary (972) 968-6178 siscod@cfbisd.edu Sylvia Tereschuk Bilingual-ESL Program Specialist (972)968-6556 tereschuks@cfbisd.edu