Emergent leadership was examined in 12 discussion groups in 4 fourth-grade classrooms. Children's leadership moves were coded from transcripts of 10 free-flowing, open-format discussions of each of the 12 groups. The transcripts encompassed 26,000 turns for speaking, including 22,000 child turns of which 1,700 were judged to serve one of five…

Examined social influences on the reasoning and rhetorical strategies of fourth graders. Found that the use of argument stratagems snowballed, there were fewer and fewer lines of discussion between successive appearances of a stratagem, and the snowball phenomenon was more pronounced during discussions with open participation than during…

Examined children's naturally occurring arguments sampled from transcripts of discussions in fourth-grade classrooms. Found that children's arguments had vague referring expressions, sometimes did not contain explicit conclusions, and seemed to lack explicit warrants to authorize conclusions. Missing or oblique information was usually given in the…