Multi-Tiered System of Supports (MTSS) is a term used to describe an evidence-based model of educating students that uses data and problem-solving to integrate academic, behavior, and social-emotional instruction and intervention to maximize the success of all students. Instruction and intervention is provided to students across multiple tiers of intensity based on need. Staff make data-based decisions in order for resources (e.g., time, staff, and evidence-based strategies) to reach the students at the appropriate levels to increase the performance of ALL students with the goal of achieving and/or exceeding proficiency in addition to students graduating high school college and career ready.