Infusing Authentic Inquiry into Biotechnology

Societal benefit depends on the general public’s understandings of biotechnology (Betsch in World J Microbiol Biotechnol 12:439–443, 1996; Dawson and Cowan in Int J Sci Educ 25(1):57–69, 2003; Schiller in Business Review: Federal Reserve Bank of Philadelphia (Fourth Quarter), 2002; Smith and Emmeluth in Am Biol Teach 64(2):93–99, 2002). A National Science Foundation funded survey of high school biology teachers reported that hands-on biotechnology education exists in advanced high school biology in the United States, but is non-existent in mainstream biology coursework (Micklos et al. in Biotechnology labs in American high schools, 1998). The majority of pre-service teacher content preparation courses do not teach students appropriate content knowledge through the process of inquiry. A broad continuum exists when discussing inquiry-oriented student investigations (Hanegan et al. in School Sci Math J 109(2):110–134, 2009). Depending on the amount of structure in teacher lessons, inquiries can often be categorized as guided or open. The lesson can be further categorized as simple or authentic (Chinn and Malhotra in Sci Educ 86(2):175–218, 2002). Although authentic inquiries provide the best opportunities for cognitive development and scientific reasoning, guided and simple inquiries are more often employed in the classroom (Crawford in J Res Sci Teach 37(9):916–937, 2000; NRC in Inquiry and the national science education standards: a guide for teaching and learning, 2000). For the purposes of this study we defined inquiry as “authentic” if original research problems were resolved (Hanegan et al. in School Sci Math J 109(2):110–134, 2009; Chinn and Malhotra in Sci Educ 86(2):175–218, 2002; Roth in Authentic school science: knowing and learning in open-inquiry science laboratories, 1995). The research question to guide this study through naturalistic inquiry research methods was: How will participants express whether or not an authentic inquiry experience enhanced their understanding of biotechnology? As respondents explored numerous ideas in order to develop a workable research question, struggled to create a viable protocol, executed their experiment, and then evaluated their results, they commented on unexpected topics regarding the nature of science as well as specific content knowledge relating to their experiments. Four out of five participants reported they learned the most during authentic inquiry laboratory experience.     

Relations between colorblind socialization and children's racial bias: evidence from European American mothers and their preschool children

To examine European American parents’ racial socialization, mothers (n = 84) were videotaped while reading 2 race‐themed books to their 4‐ to 5‐year‐old children and completed surveys concerning their racial attitudes and behaviors. Children completed measures of their racial attitudes and both groups (mothers and preschoolers) predicted the others’ racial attitudes. Results indicated that nearly all mothers adopted “colormute” and “colorblind” approaches to socialization. Furthermore, neither children nor mothers accurately predicted the others’ views. Children’s racial attitudes were unrelated to their mothers’ attitudes but were predicted by their mothers’ cross‐race friendships; those children whose mothers had a higher percentage of non‐European American friends showed lower levels of racial biases than those children whose mothers had a lower percentage of non‐European American friends.     

Social Categorization and the Formation of Intergroup Attitudes in Children

The study was designed to test several hypotheses derived from intergroup theory concerning the effects of the presence of a novel social category on the formation of intergroup attitudes. Elementary school children (N = 61; aged 6–9) were given measures of classification skill and self-esteem and assigned to 1 of 3 types of school classrooms in which teachers made: (1) functional use of "blue" and "yellow" groups assigned on the basis of a biological attribute, (2) functional use of "blue" and "yellow" groups assigned on the basis of a random drawing, or (3) no explicit groups (despite the presence of blue and yellow groups). After 4 weeks, children completed measures of intergroup attitudes and behavior. As predicted, the functional use of color groups affected children's attitudes toward group members, with children showing consistent biases favoring their own group. Children with higher levels of self-esteem showed higher levels of intergroup stereotyping.     

Children's perceptions of discrimination: a developmental model

Discrimination affects millions of children in the United States and throughout the world. Although the topic is important for both theoretical and applied reasons, little developmental work has examined children's perceptions of discrimination directed toward themselves and others. A review of past theoretical and empirical work on the perception of discrimination is provided. Next, a developmental model of the perception of discrimination is offered. The model identifies developmental and individual differences expected to influence judgments about discrimination, as well as situational variables that are likely to support attributions to discrimination.     

The Role of Classification Skill in Moderating Environmental Influences on Children's Gender Stereotyping: A Study of the Functional Use of Gender in the Classroom

Sandra Bem has suggested that societal use of gender as a functional category increases gender stereotyping. The present study tests Bem's theory and the additional hypothesis that children's classification skill moderates environmental effects on gender stereotyping. Elementary school children ( N = 66) were given pretest measures of gender stereotyping and of classification skill and assigned to 1 of 3 types of school classrooms in which teachers made: (1) functional use of male and female groups, (2) functional use of "red" and "green" groups, or (3) no explicit groups. After 4 weeks, children completed posttest measures of gender and intergroup attitudes. As predicted, the functional use of gender categories led to increases in gender stereotyping, particularly among those children with less advanced classification skills. The functional use of color categories did not result in highly stereotypic perceptions of groups. Theoretical and educational implications are discussed.     

Memory performance of children with dyslexia: a comparative analysis of theoretical perspectives

This study examined the memory performance of children with reading disabilities (RD) using methodology representative of three theoretical perspectives on RD subtypes: the phonological deficit, dual route, and phonological-core variable-difference models. Analyses compared the serial memory, verbal learning, and abstract visual-spatial memory performance of 45 children with RD to that of chronological-age (CA)- and reading-level (RL)-matched controls, using subtype identification methods from each of the theoretical models to classify children with RD. Phonological deficit and dual route comparisons indicated that children with RD, regardless of subtype, performed more poorly than CA- and better than RL-matched participants on all memory tasks. Phonological-core variable-difference methodology yielded three RD subtypes, two of which exhibited distinctive memory deficits relative to both CA and RL control groups. The phonological-core variable-difference model accounted for more variance in memory performance than either of the other two models.