ROOTS

ROOTS is a 50-lesson Tier 2 kindergarten mathematics intervention curriculum designed to support students' conceptual understanding of and procedural fluency with critical whole number concepts. The intervention targets kindergarten students at risk for mathematics difficulties and is fully aligned to the kindergarten Common Core State Standards in the area of number and operations. ROOTS is delivered in 20-minute small group sessions (two or five students) 5 days per week for approximately 10 weeks. The instruction emphasizes concepts from the Counting & Cardinality and Operations & Algebraic Thinking domains and employs explicit and systematic mathematics instruction principles, including explicit teacher modeling, deliberate practice, visual representations of mathematics, and academic feedback. All interventionists participated in two 5-hour professional development workshops and received between two and four coaching visits during implementation.