Final answer:
UDL (Universal Design for Learning) is associated with the first tier of the multi-tiered RTI (Response to Intervention) model. It aims to provide inclusive and differentiated instruction from the start to reduce the need for more intensive interventions.
Step-by-step explanation:
Universal Design for Learning (UDL) lies within the framework of the multi-tiered response to intervention (RTI) as an approach that supports all students, including those with disabilities, in the general education curriculum. It is typically associated with the first tier of RTI, which is designed to provide high-quality instruction and interventions that are universally designed and differentiated for all students in the classroom. By integrating UDL principles at Tier 1, educators aim to minimize the need for more intensive interventions at Tiers 2 and 3 by addressing learner variability and providing multiple means of engagement, representation, and action and expression from the outset.