This study of three science teachers' lessons on heat and temperature seeks to characterise classroom talk that highlighted the ways language is used and to examine the nature of the language demands revealed in constructing, negotiating, arguing and communicating science ideas. The transcripts from the entire instructional units for these…

In this article, we describe how students were invited to write and publicly read their "momentos de cambio" (moments of change) stories--memoirs in which they recount moments of significant change, both joyful and traumatic, in their lives. Drawing from elements of Latino critical theory, we conceptualize these stories in part as…