This analysis of the writing in a grade 7 mathematics textbook distinguishes between closed texts and open texts, which acknowledge multiple possibilities. I use tools that have recently been applied in mathematics contexts, focussing on grammatical features that include personal pronouns, modality, and types of imperatives, as well as on…

This study examined reciprocal associations among adolescents' negative feedback-seeking, depressive symptoms, perceptions of friendship quality, and peer-reported social preference over an 11-month period. A total of 478 adolescents in grades 6-8 completed measures of negative feedback-seeking, depressive symptoms, friendship quality,…

The educational television series "Across Cultures" was evaluated to examine the effectiveness of the series and how the programs were structured to attain objectives. Designed to complement sixth- and seventh-grade social studies textbooks, the series on world cultures is composed of thirteen 15-minute programs about three widely…