Scholastic Math Inventory (SMI) is a formative assessment that helps teachers make good decisions in the classroom. This universal screener and formative assessment shifts the paradigm from pinpointing what student do not know to defining what students know and can do. The key shift makes the difference in keeping students successful in core instructions and meeting the Common Core State Standards. With up-to-the-minute reports and scientifically-designed data tools SMI helps teachers differentiate math instruction and accelerate growth through Algebra I.