M K Chandrashekaran (1937–2009)     

Vidyanand Nanjundiah 《Resonance》2011,16(8):705-721

Maroli Krishnayya Chandrashekaran, Editor of Journal of Biosciences (from 1991 to 1997) and Resonance (from 2003 to 2005), was a biologist who stood out from his peers as much on account of the quality of his contributions as because of his style. He made major contributions to our understanding of the interplay between time and the living world (which also became the title of a book he wrote). This article aims to bring together aspects of his life and work.  相似文献   

States of matter     

Deepak Dhar 《Resonance》2011,16(12):1120-1131

All of us have read about solid, liquid and gaseous states of matter in school. Are these the only states of matter? What distinguishes different states of matter from each other?  相似文献   

Benzene and its isomers     

Gopalpur Nagendrappa 《Resonance》2011,16(12):1146-1151

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Hiding in the mirror     

Lawrence M. Krauss 《Resonance》2011,16(9):801-820

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How Does It Look? Level 2 Perspective‐Taking at 36 Months of Age     

Moll H  Meltzoff AN 《Child development》2011,82(2):661-673

Previous research has found that children engage in Level 2 visual perspective-taking, that is, the understanding that others may see things in a different way, between 4 and 5 years of age (e.g., J. H. Flavell, B. A. Everett, K. Croft, & E. R. Flavell, 1981). This ability was reexamined in 36-month-olds using color filters. In Experiment 1 (N = 24), children had to recognize how an object looked to an adult when she saw it through a color filter. In Experiment 2 (N = 24), a novel production test was applied. Results of both studies show that 36-month-olds know how an object looks to another person. The discussion focuses on the psychological requirements of visual perspective-taking and its relation to other "theory of mind" abilities, such as the distinction between appearance and reality and understanding false belief.  相似文献   

Math-gender stereotypes in elementary school children     

Cvencek D  Meltzoff AN  Greenwald AG 《Child development》2011,82(3):766-779

A total of 247 American children between 6 and 10 years of age (126 girls and 121 boys) completed Implicit Association Tests and explicit self-report measures assessing the association of (a) me with male (gender identity), (b) male with math (math-gender stereotype), and (c) me with math (math self-concept). Two findings emerged. First, as early as second grade, the children demonstrated the American cultural stereotype that math is for boys on both implicit and explicit measures. Second, elementary school boys identified with math more strongly than did girls on both implicit and self-report measures. The findings suggest that the math-gender stereotype is acquired early and influences emerging math self-concepts prior to ages at which there are actual differences in math achievement.  相似文献   

A longitudinal study of religious identity and participation during adolescence     

Lopez AB  Huynh VW  Fuligni AJ 《Child development》2011,82(4):1297-1309

To examine the development of religious identity during the teenage years, adolescents (N = 477) from Latin American, Asian, and European backgrounds completed questionnaires in the 10th, 11th, and 12th grades (10th grade age: M = 15.81, SD = 0.36). Results indicated that religious identity remained stable across high school whereas religious participation declined. Even after controlling for ethnic differences in religious affiliation, socioeconomic background, and generational status, adolescents from Latin American and Asian backgrounds reported higher levels of religious identity and adolescents from Latin American backgrounds reported higher rates of religious participation. Within individual adolescents, changes in religious identity were associated with changes in ethnic and family identities, suggesting important linkages in the development of these social identities during adolescence.  相似文献   

Ben Wildvsky: The great brain race: How global universities are reshaping the world. Princeton University Press,Princeton &; Oxford, 2010, xiii,pp. 1–240     

Wanhua Ma 《Higher Education》2011,62(2):263-265

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Why and how mathematicians read proofs: an exploratory study     

Keith Weber  Juan Pablo Mejia-Ramos 《Educational Studies in Mathematics》2011,76(3):329-344

In this paper, we report a study in which nine research mathematicians were interviewed with regard to the goals guiding their reading of published proofs and the type of reasoning they use to reach these goals. Using the data from this study as well as data from a separate study (Weber, Journal for Research in Mathematics Education 39:431–459, 2008) and the philosophical literature on mathematical proof, we identify three general strategies that mathematicians employ when reading proofs: appealing to the authority of other mathematicians who read the proof, line-by-line reading, and modular reading. We argue that non-deductive reasoning plays an important role in each of these three strategies.  相似文献   

Rethinking critical mathematics: a comparative analysis of critical, reform, and traditional geometry instructional texts     

Andrew Brantlinger 《Educational Studies in Mathematics》2011,78(3):395-411

This paper presents findings from a comparative analysis of three similar secondary geometry texts, one critical unit, one standards-based reform unit, and one specialist chapter. I developed the critical unit as I took the tenets of critical mathematics (CM) and substantiated them in printed curricular materials in which to teach as part of a larger study. The reform and specialist texts were both sections from commercially available textbooks. The primary goal of the textual analysis was to examine how the incorporation of critical or political themes into the required secondary mathematics curriculum transformed this curriculum. Key findings were that the CM text exchanged political for mathematical content and sent class-based messages about students’ academic potential. I conclude by arguing that the CM agenda proposed by advocates in the USA is problematic in terms of promoting equity in mathematics education.  相似文献