Child Development and Structural Variation in the Human Genome

Structural variation of the human genome sequence is the insertion, deletion, or rearrangement of stretches of DNA sequence sized from around 1,000 to millions of base pairs. Over the past few years, structural variation has been shown to be far more common in human genomes than previously thought. Very little is currently known about the effects of structural variation on normal child development, but such effects could be of considerable significance. This review provides an overview of the phenomenon of structural variation in the human genome sequence, describing the novel genomics technologies that are revolutionizing the way structural variation is studied and giving examples of genomic structural variations that affect child development.     

The question of sign-language and the utility of signs in the instruction of the deaf: two papers by Alexander Graham Bell (1898)

Alexander Graham Bell is often portrayed as either hero or villain of deaf individuals and the Deaf community. His writings, however, indicate that he was neither, and was not as clearly definite in his beliefs about language as is often supposed. The following two articles, reprinted from The Educator (1898), Vol. V, pp. 3-4 and pp. 38-44, capture Bell's thinking about sign language and its use in the classroom. Contrary to frequent claims, Bell does not demand "oral" training for all deaf children--even if he thinks it is the superior alternative--but does advocate for it for "the semi-deaf" and "the semi-mute." "In regard to the others," he writes, "I am not so sure." Although he clearly voices his support for oral methods and fingerspelling (the Rochester method) over sign language, Bell acknowledges the use and utility of signing in a carefully-crafted discussion that includes both linguistics and educational philosophy. In separating the language used at home from that in school and on the playground, Bell reveals a far more complex view of language learning by deaf children than he is often granted. (M. Marschark).     

On stratification in changing higher education: the “analysis of status” revisited

This article seeks to shed light on current dynamics of stratification in changing higher education and proposes an analytical perspective to account for these dynamics based on Martin Trow’s work on “the analysis of status.” In research on higher education, the term “stratification” is generally understood as a metaphor that describes a stable vertical order. In sectors that are experiencing considerable change, such an order is still in the making. In following Trow, we propose to look at stratification as an open ordering process that constructs verticality. We distinguish between sector and field stratification, i.e., between stratification through coercive regulation by the state and through status judgements by a wide range of stakeholders. Within the last decade, field stratification has grown in importance as governments in continental Europe have provided universities with more leeway. Specific devices (rankings, etc.) channel such judgements and construct images of how a field appears. By applying this concept to two empirical cases from German higher education, we will show how devices redefine verticality in higher education through specific field images. First, master rankings in business administration/economics expand the topological boundaries to include degree programs outside national sectors, raise the importance of alumni and increase the recruitment of female students. Second, the Excellence Initiative triggers the construction of a new unregulated sector of doctoral education; excellent graduate schools model themselves along the scales of the field image as selective, interdisciplinary, international, and part of a holistic university image.     

Is drawing after learning effective for metacognitive monitoring only when supported by spatial scaffolds?

Instructional Science - In this study, we investigated whether drawing after learning supports metacognitive monitoring especially when students are supported in their drawing efforts. Therefore,...     

Modeling question-answer relations: the development of the integrative inferential reasoning comic assessment

Reading and Writing - We constructed a new taxonomy for inferential thinking, a construct called Integrative Inferential Reasoning (IIR). IIR extends Pearson and Johnson's (1978) framework of...     

Gender Roles at Home and School

Parents of 116 first‐year pupils at an urban comprehensive school were studied by questionnaire and interview. They were asked about their educational and occupational aspirations for their children, their views on sexual equality and their children's out‐of‐school activities. Educational aspirations were found to be high, with little differentiation between the sexes. Parents were enthusiastic about their daughters studying physical science and neutral about craft subjects. Occupational aspirations were also high and although they tended to be sex‐stereotyped, parents were found to be generally supportive of non‐traditional choices. Class differences were few. Most parents were in favour of working mothers, equal pay and men helping with housework. However these egalitarian attitudes coexisted with more traditional assumptions about male breadwinners and a woman's main responsibility being to her children. Parents’ own domestic labour and that which they required of their children was strongly sex‐stereotyped. The messages which children receive about gender from their homes are contradictory, but not as uniformly traditional as many teachers assume.     

Still no pedagogy? principle,pragmatism and compliance in primary education

This article revisits Brian Simon's 1981 Simon B (1981) Why no pedagogy in England? in: B. Simon & W. Taylor (Eds) Education in the eighties: the central issues (London, Batsford) 124 145  [Google Scholar] judgement that for deep‐seated historical reasons English education lacks a coherent and principled pedagogy. Given that since 1997 the tide of educational centralisation has added teaching methods to those aspects of schooling which the UK government and/or its agencies seek to prescribe, it is appropriate to test the continuing validity of Simon's claim by reference to a major policy initiative in the pedagogical domain: the government's Primary Strategy, published in May 2003. This article defines pedagogy as both the act of teaching and its attendant discourse and postulates three domains of ideas, values and evidence by which both are necessarily framed. It then critically assesses the Primary Strategy's account of some of the components of pedagogy thus defined, notably learning, teaching, curriculum and culture, and the political assumptions which appear to have shaped them. On this basis, the Primary Strategy is found to be ambiguous and possibly dishonest, stylistically demeaning, conceptually weak, evidentially inadequate and culpably ignorant of recent educational history. The article is an extended version of the last in the 2002–2003 Research Lecture series at Cambridge University Faculty of Education, and preserves some of the style of its initial mode of presentation.     

Managing Element Interactivity in Equation Solving

Between two popular teaching methods (i.e., balance method vs. inverse method) for equation solving, the main difference occurs at the operational line (e.g., +2 on both sides vs. ?2 becomes +2), whereby it alters the state of the equation and yet maintains its equality. Element interactivity occurs on both sides of the equation in the balance method, but only on one side in the case of the inverse method. Thus, the balance method imposes twice as many interacting elements as the inverse method for each operational line. In two experiments, secondary students were randomly assigned to either the balance method or the inverse method to learn how to solve one-step, two-step, and three-or-more-step linear equations. Test results indicated that the interaction between method and type of equation favored the inverse method for equations involving higher element interactivity. Hence, by managing element interactivity, the efficiency of instruction for equation solving can be improved.     

Effects of Processing Time on Comprehension and Calibration in Print and Digital Mediums

This study explored the effects of processing texts in print or digitally on readers' comprehension, processing time, and calibration. Eighty-six undergraduates read print and digital versions of book excerpts about childhood ailments presented in counterbalanced order. Comprehension was tested at three levels (i.e., main idea, key points, and other relevant information). Direct comparisons between print and digital reading demonstrated a significant advantage for reading in print on students' recall of key points and other relevant information but not the main idea. When processing time was added as a mediator variable, it significantly affected the relation between medium and comprehension for all question levels. In terms of calibration, students read more quickly and judged their performance higher when engaged digitally, although their actual performance was much better when reading in print. Implications of these findings for subsequent research are considered.