Multi-tiered System of Supports (MTSS) is a progression of targeted interventions to ensure all students excel behaviorally, academically, and social-emotionally.  OPUSD uses Illuminate Education's Fastbridge platform to universally screen students in grades K-8 three times a year in Math and Reading.  A team of educators and paraprofessionals review the screening data, along with classroom data, to identify students needing additional math and/or reading support.  Our Interventionists provide evidence-based interventions in 6-8 week cycles.  Student progress is monitored throughout the intervention periods and students are re-screened during the next screening window.