All Response to Intervention (RTI) models show core instruction as the foundation of teaching reading. As schools face the challenges of implementing RTI, however, they are discovering that many of the problems they face actually relate to their core instruction. This book provides practical, research-based support to help teachers in grades K-5 improve their core instruction and manage the three tiers of intervention that comprise RTI. The authors also include manageable ideas for monitoring students' progress and interventions strategies for each RTI tier. For use with Grades K-5.