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Students with disabilities are increasingly included in general education science classrooms and are expected to demonstrate academic proficiency on standardized assessments. Teacher preparation and attitudes have been cited as major factors contributing to either the success or failure of students with disabilities in science. In order to assess the current state of what could be facilitative or inhibitory influences, a national online survey to which 1,088 K-12 science teachers responded was conducted. Mixed methods' analyses suggest that science teachers receive little formal training and feel underprepared to teach students with disabilities. Results identify specific gaps in science teachers' education, as well as attitudinal and institutional barriers that may inhibit students with disabilities' success. However, science teachers remain highly receptive to training and collaboration. Implications for science teacher education are discussed.

Imprecise constructs abound in science education research in part due to reliance on stipulative definitions that neglect fine distinctions between closely related constructs and overlook important meanings and hidden values embedded in language. Lack of conceptual clarity threatens construct validity, hampers theory development, and prevents science education researchers from focusing on the precise skills they wish to study and promote. To address these challenges, we argue for the expanded use of conceptual analysis, a traditional form of philosophical inquiry underutilized in science education research. After examining the historical and epistemological bases for this methodology, we introduce a variety of techniques used in this mode of inquiry including generic, differentiation, and conditions-type analyses using model, borderline, contrary, and invented cases. To further advance our argument, we then conduct an abbreviated differentiation-type analysis to distinguish "perspectives" from the related terms "orientations" and "positions," three terms that present conceptual challenges in the research area of Socioscientific Issues (SSI) yet are clarified and contextually situated through this analysis. Finally, in light of our analysis, we suggest future directions for the expanded use of conceptual analysis in science education research. #

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