Research shows that tutoring, especially when delivered intensively and with personalized support, is one of the most effective interventions for improving math and reading outcomes, particularly for students from low-income backgrounds. Successful tutoring programs are characterized by strong tutor-student relationships, frequent sessions, small group sizes (no more than three students per tutor), high-quality materials aligned with the curriculum, and data-informed practices. Programs are more effective when scheduled during the school day and when tutors receive proper training and ongoing support. Finally, the brief provides guidance on implementing and scaling tutoring initiatives to ensure sustainable, impactful outcomes.