Making meaning in classrooms: Social processes in small-group discourse and scientific knowledge building

This study analyzed student talk in working groups during four laboratory investigations. Its purpose was to understand the process by which students solve scientific problems, the difficulties students encounter in developing the requisite pieces of scientific arguments while negotiating their social roles, and the ways these roles shape task engagement and the development and articulation of the arguments themselves. The discourse of 6 groups of four students each was audiotaped and 2 groups were videotaped during the planning, execution, and interpretation of student-designed experiments in a 10th-grade interdisciplinary science class. Goals of student engagement, knowledge building within an intellectual framework, and construction of scientific arguments were used to examine conceptual difficulties and social interactions. Within-group comparisons across labs and across-group comparisons within labs were made. It was determined that: (a) students became much better at using the scientific method to construct convincing arguments, and (b) specific social roles and leadership styles developed within groups that greatly influenced the ease with which students developed scientific understanding. The results demonstrate not only that knowledge building involves the construction of scientifically appropriate arguments, but that the extent to which this knowledge building takes place depends on students learning to use tools of the scientific community: their expectations about the intellectual nature of the tasks and their role in carrying these tasks out: and the access they have to the appropriate social context in which to practice developing skills. © 1996 John Wiley & Sons, Inc.     

Guardian consent for children's participation in sociometric research

Sociometric research has been plagued by low consent rates that potentially decrease the validity of assessment results. This study focused on ways to increase consent rates and documentation of guardians' reasons for nonconsent. A planned sequence of increasingly more personalized communication steps with parents yielded a 92% consent rate. Reasons for nonconsent ranged from children telling their parents that they did not want to participate to not having enough information about the research to make an informed decision. Discussion focuses on strategies that may increase guardian support for children's involvement in educational research.     

Reinvisioning and redesigning “a library for the fifteenth through twenty-first centuries”: a case study on loss of space from the Library and Center for Knowledge Management,University of California,San Francisco

The University of California, San Francisco, is an academic health sciences campus that is part of a state public university system. Space is very limited at this urban campus, and the library building''s 90,000 square feet represent extremely valuable real estate. A planning process spanning several years initially proposed creating new teaching space utilizing 10,000 square feet of the library. A collaborative campus-wide planning process eventually resulted in the design of a new teaching and learning center that integrates clinical skills, simulation, and technology-enhanced education facilties on one entire floor of the building (21,000 square feet). The planning process resulted in a project that serves the entire campus and strengthens the library''s role in the education mission. The full impact of the project is yet unknown as construction is not complete.     

The development of distrust

Preschool-age children's reasoning about the reliability of deceptive sources was investigated. Ninety 3- to 5-year-olds watched several trials in which an informant gave advice about the location of a hidden sticker. Informants were either helpers who were happy to give correct advice, or trickers who were happy to give incorrect advice. Three-year-olds tended to accept all advice from both helpers and trickers. Four-year-olds were more skeptical but showed no preference for advice from helpers over trickers, even though they differentiated between helpers and trickers on metacognitive measures. Five-year-olds systematically preferred advice from helpers. Selective trust was associated with children's ability to make mental state inferences.     

Science Instructors’ Perceptions of the Risks of Biotechnology: Implications for Science Education

Developing scientifically literate students who understand the socially contextualized nature of science and technology is a national focus of science education reform. Science educators’ perceptions of risks and benefits of new technologies (such as biotechnology) may shape their instructional approaches. This study examined the perceived risk of biotechnology of four groups of science educators: pre-service science teachers, in-service science teachers, biology graduate teaching assistants, and biology professors (n = 91). Data sources included a survey instrument and card sort task designed to determine the respondents’ structure of risk perception and factors contributing to this structure. The perceptions of the four educator groups were compared and contrasted along these dimensions. Results showed that the teacher groups were similar along many aspects of risk perception, but university professors were more likely to view the more subtle “gray areas” between biotechnology risks. The results are discussed in the context of understanding teacher risk perception on science pedagogical practice as well as the role of content knowledge and teaching experience on risk perception formation.     

A Long-Term Effect of Perceptual Individuation Training on Reducing Implicit Racial Bias in Preschool Children

This study tracked the long-term effect of perceptual individuation training on reducing 5-year-old Chinese children's (N = 95, M_age = 5.64 years) implicit pro-Asian/anti-Black racial bias. Initial training to individuate other-race Black faces, followed by supplementary training occurring 1 week later, resulted in a long-term reduction of pro-Asian/anti-Black bias (70 days). In contrast, training Chinese children to recognize White or Asian faces had no effect on pro-Asian/anti-Black bias. Theoretically, the finding that individuation training can have a long-term effect on reducing implicit racial bias in preschoolers suggests that a developmentally early causal linkage between perceptual and social processing of faces is not a transitory phenomenon. Practically, the data point to an effective intervention method for reducing implicit racism in young children.     

Judging a Book by Its Cover: Children's Facial Trustworthiness as Judged by Strangers Predicts Their Real-World Trustworthiness and Peer Relationships

This longitudinal research examined whether children's facial trustworthiness as judged by strangers can predict their real-world trustworthiness and peer acceptance. Adults (Study 1) and children (Study 2) judged the facial trustworthiness of 8- to 12-year-old children (N = 100) solely based on their photographs. The children's classmates were asked to report their real-world trustworthiness and peer acceptance. Children's facial trustworthiness reliably predicted these outcomes both initially when the photographs were taken, as well as 1 year later, and this effect was mediated by the initial ratings of real-world trustworthiness and peer acceptance. These results provide evidence for a long-lasting linkage between children's facial and real-world trustworthiness.     

Racial Categorization Predicts Implicit Racial Bias in Preschool Children

This research investigated the relation between racial categorization and implicit racial bias in majority and minority children. Chinese and Indian 3- to 7-year-olds from Singapore (N = 158) categorized Chinese and Indian faces by race and had their implicit and explicit racial biases measured. Majority Chinese children, but not minority Indian children, showed implicit bias favoring own race. Regardless of ethnicity, children's racial categorization performance correlated positively with implicit racial bias. Also, Chinese children, but not Indian children, displayed explicit bias favoring own race. Furthermore, children's explicit bias was unrelated to racial categorization performance and implicit bias. The findings support a perceptual–social linkage in the emergence of implicit racial bias and have implications for designing programs to promote interracial harmony.