Vocabulary knowledge is an important foundation skill for reading across all subject areas. Because students with disabilities lag behind their peers in reading skills, there is a need for efficient and effective vocabulary interventions. Focusing on morpheme knowledge is one efficient approach to building vocabulary. This article describes an…

The acquisition of receptive and expressive language skills by students with autism and developmental disabilities (DD) is often delayed, thus making the process of communicating with others challenging. Some students develop language skills incidentally through conversations with their families and peers, but others require instruction in…

In this article, the authors focus on issues of instruction in classrooms. Initially, a brief definitional and historic section is presented. This is followed by a discussion of four assumptions about the current state of affairs: (a) evidence-based practices should be identified and used, (b) children's phase of performance should dictate…