Multi-Tiered System of Support (MTSS) provides a basis for understanding how Prince William County educators can work systematically to ensure equitable access and opportunity for all students to achieve academic, social emotional and behavioral growth and success. MTSS includes Response to Instruction and Intervention (RTI2) as well as additional, distinct philosophies and concepts.

What’s under the MTSS Umbrella?

  • Response to Instruction and Intervention (RTI2).
  • Positive Behavior and Intervention Support (PBIS).
  • Social and Emotional Learning (SEL).
  • Professional Development.
  • 21st Century Tools.
  • Family and Community Engagement.
  • School Community Collaboration.
  • Additional resources.

MTSS (Multi-Tiered Systems of Support) Resources

MTSS (Multi-Tiered Systems of Support) Newsletters

MTSS (Multi-Tiered Systems of Support) Webinars

MTSS (Multi-Tiered Systems of Support) Professional Journals (PDF)

MTSS (Multi-Tiered Systems of Support) Supplemental Materials

MTSS (Multi-Tiered Systems of Support) Forms (PDF)


Rebecca Yellets 

Rebecca Yellets
Supervisor of ED/LD and MTSS


Shelley A. Legall-Brickey
Supervisor of Eligibility and MTSS

Cesar Maisonet
Coordinator Supporting PBIS

Jake Fladd
Coordinator MTSS

Charlene Briggs
Coordinator Supporting MTSS/OG

Richard Terrilion
Coordinator Supporting MTSS/OG