Response to Intervention (RtI) is a multi-tiered system of supports. RtI is a proactive and preventative model for academics and behavior. Tier 1 interventions are commonly referred to as Universal Supports or Core Instruction as they are intended for all students. Tier 2 is commonly referred to as Supplemental Intervention or Small Group Supports as they provide additional intruction/interventions to students who have been identified as at-risk. Tier 3 is commonly referred to as Customized Intervention or Intensive Supports that target a small number of students who require a high level of support and didn't respond to Tier 1 and Tier 2 interventions. Below are some resources and interventions that may be helpful!
NYS RtI Technical Assistance Center
National Center on RtI
RtI Action Network