This presentation will document the successful transformation of multiple under-performing Title One schools at the primary level. There is a critical need for early identification of students who are experiencing difficulties in mathematics and, then, the provision of immediate and targeted intervention in order to build foundational skills and knowledge. In this session, I will demonstrate the Primary Mathematics Assessment to screen K-2 students at the beginning and middle of the year on six predictive domains, which allowed us to work with teachers on providing specific curricular tasks to improve student learning across these domains.