The vision of K-12 standards-based mathematics reform embraces a greater emphasis on students' ability to communicate their understandings of mathematics by utilizing adaptive reasoning (i.e., reflection, explanation, and justification of thinking) through mathematics discourse. However, recent studies suggest that many students lack the…

The study explores students' use of language in the process of making sense of genetics concepts. It aims to analyze primary and secondary discourses, and examine the relationship between social practices and discourses. Sixth-grade students were interviewed before and during four weeks instruction on genetics. General trends were detected…