Description Idaho State Department of Education RTI Conference (April 2010) Greg Roberts: Response to Intervention: Models, Methods, and Musings Citation Roberts, G. (2010). Response to intervention: Models, methods, and musings. More by These Authors Early Numeracy Intervention Program for First-Grade Students With Mathematics Difficulties Effects of an Early Intervention for Second-Grade Students At Risk for Mathematics Difficulties Validating a Response to Intervention Multitiered Model for Primary Grade Students With Mathematics Difficulties