Teachers are constantly assessing their students, whether it is formally or informally. They use screening, diagnostic, and outcome assessments to determine areas of concern and then monitor the progress of the students based on the interventions given. They are called upon to intervene with prevention in mind, helping students catch up as they begin to fall behind. The Response to Intervention model offers three tiers of service for students. Professionals should question the interventions they deliver in response to their students' needs. This Literacy Leaders column offers a series of questions for reflection that may guide teachers or administrators in determining the effectiveness of applied interventions. Also offered is a suggested model for literacy leaders to follow that will help align what interventions and progress monitoring tools are available at the individual campus and district level. (Contains 1 table.)