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While bilinguals frequently mix languages in everyday conversation, these hybrid language practices have often been viewed from a deficit perspective, particularly in classroom contexts. However, an emerging literature documents the complexity of hybrid language practices and their usefulness as an academic and social resource for bilingual students. This chapter examines hybrid language practices among English- and Spanish-speaking high school students in an astronomy/oceanography classroom in southern Arizona. Microethnography, or fine-grained analysis of video recordings from long-term ethnographic observation, is used to reveal what bilingual students accomplished with hybrid language practices in the classroom and to outline implications for teachers who want to engage their students’ hybrid repertoires. Specifically, the analyses reveal that careful attention to hybrid language practices can provide teachers with insights into students’ academic learning across linguistic codes, their use of language mixing for particular functions, and their beliefs about language and identity. The research is necessarily limited in scope because such in-depth analysis can only be done with a very small amount of data. Nevertheless, the findings affirm that hybrid language practices can enrich classroom discourse, academic learning, and social interaction for emergent bilinguals. The chapter highlights a teacher’s story in order to offer practical guidance to other teachers who seek to capitalize on the promise of hybrid language practices in their own classrooms.

This paper presents an evaluation of three Web based prototypes for bibliographic displays developed as part of an ongoing research project at the Faculty of Information Studies of the University of Toronto. The development of these prototypes builds upon results obtained in earlier phases of the project that addressed issues of both the content and form of bibliographic displays in Public Access Catalogues (Chan 1995; Luk 1996). Anticipation of continued growth in the number of catalogues available through the World Wide Web, combined with evidence (Cherry and Cox 1996) that existing Web based displays have not shown improvement over their text‐based counterparts, motivated the development of these prototypes for use on the Web. The findings from a focus group evaluation of the three prototypes are also reported, and suggestions made for future research.