Research is conclusive: response to intervention (RTI) is the best way to intervene when students struggle in school. Also known as a multitiered system of support (MTSS), the RTI process ensures every student receives the additional time and support needed for academic success. A companion to Best Practices at Tier 1, this guide provides secondary educators with fundamental principles, practices, and tools for implementing effective Tier 2 intervention strategies. The RTI at Work™ inverted pyramid is designed to continually focus a school's collective attention and resources to a single point: the individual child. Tier 1: Access to an essential grade-level curriculum that embeds ongoing monitoring for all students. Tier 2: Immediate and targeted behavior and academic interventions systematically applied and monitored for any students not mastering the core curriculum. Tier 3: Intensive interventions and remediation focused on closing gaps in learning. Your guide to implementing Tier 2 of response to intervention in secondary schools: (1) Understand the challenges facing schools, and consider why educators need to change their thinking; (2) Receive proven, practical strategies and tools for implementing Tier 2 instruction and interventions; (3) Discover the foundational principles of effective educational practices; (4) Identify the roles of teacher, leadership, and intervention teams, and understand why they are essential to the intervention system; (5) Gain tips for determining student-learning levels and how to move student learning forward; (6) Review structures and schedules that build time in the school day to support students who need interventions; and (7) Utilize teacher teams and the 4 Critical Questions of the PLC at Work® framework to ensure all students master essential curriculum.