The Next Generation Science Standards (NGSS) require students to use language in different ways. Expressive and receptive language skills are necessary to participate in the standards-based scientific practices of asking questions, constructing explanations, and engaging in arguments from evidence during scientific discussions. Participating in…

Interest in students who exhibit characteristics with difficulties in learning can be traced as far back as 1800. In order to better understand the complexities and causes of learning disabilities, many researchers (Bannatyne, 1968, 1974; Rugal, 1974) have investigated ways to better identify learners who struggle with academics. A strong argument…