This study evaluated an intervention developed through an Institute of Education Sciences-funded Goal 2 research project to teach students with moderate intellectual disability (moderate ID) to solve addition and subtraction word problems. The intervention involved modified schema-based instruction that embedded effective practices (e.g., pictorial task analysis, graphic organizers, systematic prompting with feedback) for teaching mathematics skills to students with moderate ID. The dependent variables included steps performed correctly on a problem solving task analysis, number of problems solved, problem type discrimination, and generalization of problem solving skills. Results of a multiple probe across student dyads design indicated a functional relation between three dependent variables and the intervention. Upon completion of the intervention, all eight participants with moderate ID correctly followed the task analysis, discriminated problem types, and solved word problems. Key discussion items include feasibility of teaching problem solving skills, types of modifications needed, and the generality of these skills to novel formats.
Literacy is an important skill for accessing all academic content areas, and there has been an increased focus on using a variety of assistive technology (AT) to support the acquisition of literacy skills for students with severe disabilities. Literacy also provides these students with skills to increase community participation, with independence, with skills to make individual choices, and with opportunities for potential employment. Portable technology such as an iPad2® can be used to enhance literacy skills for students with severe disabilities in elementary school. A typical way to teach literacy to this population is through the use of a shared story. Although systematic instruction has proven to be an effective teaching strategy, the generality of the literacy skills usually has not been the focus of the training. In this study, five students with severe disabilities (IQ below 55, range in age 7-11 years, grade range 2nd-6th grades) were taught to generalize literacy skills via multiple exemplar training. A multiple probe design across participants demonstrated a functional relation between student responding and the intervention. Extension of what we currently know, limitations, and future research are discussed.
Computer-assisted instruction (CAI) is growing in popularity and has demonstrated positive effects for students with disabilities, including those with autism spectrum disorder (ASD). In this review, criteria for group experimental and single case studies were used to determine quality (Horner et al., Exceptional Children 71:165-179, 2005; Gersten et al., Exceptional Children 71:149-164, 2005; National Technical Assistance Center on Transition Center 2015). Included studies of high and adequate quality were further analyzed in terms of content, context, and specific instructional practices. Based on the NTACT criteria, this systematic review has established CAI as an evidence-based practice for teaching academics to students with ASD with support from 10 single-case and two group design studies of high or adequate quality. Suggestions for future research and implications for practice are discussed.
Rural special educators face unique challenges in providing high quality special education services, especially when teaching grade-aligned science content. Computer-assisted instruction (CAI) is one strategy that has the potential to address two major challenges (i.e., a lack of preservice training and limited professional development opportunities) in providing grade-aligned content instruction with fidelity. This study investigated the use of a CAI intervention package to teach three middle school students with autism spectrum disorder and intellectual disability the structure and function of five key elements of an amoeba. Results showed a functional relation between the number of correct responses made during probe sessions and introduction of the CAI intervention. Implications for practice and suggestions for future research are also discussed.
Mathematical problem solving is necessary in many facets of everyday life, yet little research exists on how to teach students with more severe disabilities higher order mathematics like problem solving. Using a multiple probe across participants design, three middle school students with moderate intellectual disability (ID) were taught to solve video-simulation real-world mathematical problems by finger counting using video prompting (VP) in conjunction with systematic instruction (e.g., least intrusive prompting) with error correction and feedback. The simulated videos covered a variety of thematic units (i.e., pet store, grocery store, household chores, sporting goods store, outside chores, and thrift store) students may encounter in their everyday lives. The results of this study demonstrated a functional relation between VP and participants’ mathematical problem-solving skills. Findings from this study provide several implications for practice and research for using video-based interventions to teach mathematical problem solving to students with moderate ID.
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