Tiers

 = Tiered Instruction/Intervention  = ==The heart of any RTI model lies in the use of tiered instruction. In the RTI framework, the instruction delivered to students varies on several dimensions that are related to the nature and severity of a student's difficulties. Edward Shapiro of Lehigh University provides a detailed explanation of the multi-tiered instructional component of RTI.==  = Tier 1 - Core Instructional Intervention  = 

= Tier 2 - Targeted, Group Intervention  =  = =

= Tier 3 - Intense, Individual Intevention  =