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We report on a case study that took place in a southwestern culturally and linguistically diverse urban high school science classroom during a grade recovery summer session. The introduction of a technology-infused unit on epidemiology engaged students in a multi-contextual exploration of the spread of diseases. The analysis of the resultant classroom discourse centers on connections made and identities expressed by the students (as students, social beings, avatars, and scientists), with particular attention to how these students use language to bridge worlds (the participatory simulation world, the classroom world, the 'real' world (outside the classroom), and the laboratory (science) world). The results indicate that including a participatory technology tool supported students' learning journey. Specifically, students built on a shared virtual experience in ways that helped them to draw and expand on prior experiences well beyond the classroom in the service of developing science understanding.

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We report on a case study examining the effects of a technology adaptation on patterns of discourse in a sheltered English high school science unit on electricity. The focus here is on how the tool, a classroom response system (CRS), affected access to and participation in classroom discourse with regard to developing science literacy among English language learners (ELLs), in particular Spanish speakers. Results indicate that, with appropriate pedagogies, CRS integration can provide learners with additional opportunities to become active participants and agents in their own learning by supporting teachers in reshaping their discourse patterns. We highlight how the CRS led to greater engagement by supporting a shift in the rhythm and participation structures of discourse. Implications for use in classroom settings by teachers with a range of expertise in instructional technology are provided.