Bree A. Jimenez

Teaching Mathematics and Science Standards to Students With Moderate and Severe Developmental Disabilities

This study evaluated strategies to teach secondary math and science content to students with moderate and severe developmental disabilities in a quasiexperimental group design with special education teachers randomly assigned to either the math or the science treatment group. Teachers in the math group implemented four math units representing four of the five national math standards. The science teachers implemented four science units representing three of eight national science content standards. A fourth standard, science as inquiry, was embedded within each of the units. Results showed students made gains in respective content areas. Students who received instruction in math scored higher than students who received instruction in science on the posttest of math skills. Likewise, students who received instruction in science scored higher than students who received instruction in math on the posttest of science vocabulary skills. Limitations and suggestions for future research and practice are discussed.

Inclusive Inquiry Science Using Peer-Mediated Embedded Instruction for Students with Moderate Intellectual Disability

There has been limited research on the acquisition of grade-aligned science skills for students with moderate intellectual disability, with even more restriction on academic skills in inclusive settings. This study examined the effects of peer-mediated time-delay instruction to teach inquiry science and use of a knowledge chart to students with moderate intellectual disability in an inclusive setting. Six general education peers implemented an embedded constant time-delay procedure during three science units with 5 students with moderate intellectual disability. All 5 students increased the number of correct science responses across all science units. Three students required additional support by the special education teacher to reach mastery. In addition, all 6 peers were able to implement the intervention with high fidelity, while maintaining science grades at preintervention levels. High levels of social validity were reported.

Evaluating Evidence-Based Practice in Teaching Science Content to Students with Severe Developmental Disabilities

A comprehensive review of the literature was conducted for articles published between 1985 and May 2009 to (a) examine the degree to which science content was taught to students with severe developmental disabilities and (b) and evaluate instructional procedures in science as evidence-based practices. The review was organized by a conceptual model developed for science content. Seventeen experiments were analyzed for research quality where science content was taught to this population; 14 of these studies were viewed to be of high or adequate quality. In general, we found systematic instruction as an overarching instructional package to be an evidence-based practice for teaching science content. Furthermore, components of systematic instruction (i.e., task analytic instruction and time delay) were analyzed. We discuss the outcomes to reflect how to teach science, what science content to teach, why to teach science, and recommendations for future research and practice.

Early Numeracy Instruction for Students with Moderate and Severe Developmental Disabilities

Competence in early numeracy skills highly correlate with success in mathematics in later years; however, many students, including students with moderate and severe disabilities, lack a sound foundation in early numeracy skills. For this population, the gaps in skills widen as students progress through academic years, making it more difficult for students to access the general curriculum, and consequently, students exit school without the skills needed for the 21st century. This article provides a conceptual model for teaching early numeracy skills to elementary students with moderate and severe developmental disabilities, as well as pilot research in both special and general education settings. Limitations and suggestions for future research are included.

The Effects of a “Tell-Show-Try-Apply” Professional Development Package on Teachers of Students With Severe Developmental Disabilities

The What Works Clearinghouse guidelines for high-quality professional development were used to develop a Tell, Show, Try, and Apply (TSTA) method of training. This method was used to train teachers to align instruction to grade-level content for students with severe developmental disabilities. A total of 193 teachers of students who participate in alternate assessment based on alternate achievement standards from three states participated in the first 2 days of training. A subset of 37 teachers participated in a 3rd day of training and submitted products from classroom applications. The impact of the TSTA training was evaluated to determine its effect on teachers’ instructional fidelity across three content areas (e.g., English language arts [ELA], mathematics, science) with their own students. In addition, generalization to new academic content aligned to grade-aligned standards developed by the teachers was taken. Results indicated that the professional development was effective not only in increasing teachers’ knowledge of alignment but also grade-aligned instruction with generalization across content. Future research questions and practical application also are discussed.

The Additive Effects of Scripted Lessons Plus Guided Notes on Science Quiz Scores of Students With Intellectual Disability and Autism

This study examined the effects of scripted lessons (SLs) alone and in combination with guided notes during science instruction on science quiz scores of three elementary students with moderate to severe intellectual disability and autism. This study used a multiple probe across three science units design with replication across students and included four conditions of baseline, SLs, scripted lessons plus guided notes (SLs + GNs), and maintenance. Results showed a change in level from baseline to the SLs condition for all three participants and additional slight improvement in scores during the SLs + GNs condition for two participants. Furthermore, acquisition of science content was maintained over time for all participants. Implications for research and practice are discussed.

From Different to Differentiated: Using “Ecological Framework” to Support Personally Relevant Access to General Curriculum for Students with Significant Intellectual Disabilities

Language used in the field of special education is important; it can serve to influence both curriculum and placement decisions for students with intellectual disability. Historically, “Functional Curriculum” was used to describe curriculum adaptations necessary for students to access their environment (school and community). However, the term has evolved to mean a separate set of curriculum standards primarily addressing daily life skills for individuals with significant disabilities. An unintended consequence of this term has been to suggest a “different” rather than “differentiated” curriculum for students and, by doing so, suggest the need for separate settings in which to deliver this differently focused curriculum. A recent paper by Hunt, McDonnell, and Crockett (2012) suggests the use of an ecological framework to guide stakeholders to maintain a clear focus on individual student needs as they provide access to general curriculum for this population of students. The authors suggest the term, “Personally Relevant,” as a reference to curriculum adaptations made within the ecological framework to both access grade-appropriate curriculum and receive individualized support. This change—from Functional to Personally Relevant—promotes inclusive practices by signalling common curriculum that is differentiated, not different, for students with significant intellectual disability.