Reports and surveys by the U.S. government and international organizations have repeatedly acknowledged the achievement problem in math in K-12 regardless of various efforts (e.g., by the U.S. Department of Education) to diminish it. To address the problem in math achievement in K-12, teachers, scholars, and the U.S. government have developed…

This article discusses communicative intent in persons with severe intellectual disability in the context of intervention studies reporting the acquisition of graphic symbol use. The article reviews communicative intent as formulated within psycholinguistic models of language acquisition which emphasize pragmatics and the functions of…