MTSS & Intervention Services

MTSS Department Graphic

Multi-Tiered Systems of Support (MTSS) is a process that aids students' educational development by including universal screening of all students, multiple tiers of instruction, support services, and an integrated data collection and assessment system. The Intervention Services Team seeks to provide high-quality support to students who have experienced difficulties with learning, are at risk of dropping out, and have a physical or mental impairment. 

Sue-Ellen Washington Director of State and Federal Programs

Dr. Sue-Ellen Washington
Director 504 & Intervention Services
SuWashington@duncanvilleisd.org

Maria Posada
Department Administrative Assistant
mposada@duncanvilleisd.org
972-708-2019

Hours of Operation
M-Th 8:00 am - 4:30 pm
F 8:00 am - 4:00 pm

Address
Teaching and Learning Center
9240 County View Rd.
Dallas, 75249

phone: 972-708-2000
fax: 972-708-2020

Arianne Alexander
Intervention Services Coordinator 
aalexander@duncanvilleisd.org