Tiers 1, 2 and 3 make up the Multi-Tiered Systems of Support, or MTSS model to help students learn and grow. Tier 1 is considered a universal approach to meet the needs of most students. It is typically a curriculum focused on skill building for all students in the class to achieve optimal learning and meet a school’s expectations for positive behavior. Tier 2 interventions are targeted toward students who are going through a difficult time and need more support than Tier 1 provides. Tier 2 interventions are short-term and intended to meet the higher needs of the student as soon as they are identified. Tier 3 interventions are used when a student has significant and chronic learning barriers that need intensive support before returning to Tier 2 or Tier 1.