6,376 research outputs found

    Geometrical reasoning in the primary school, the case of parallel lines

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    During the primary school years, children are typically expected to develop ways of explaining their mathematical reasoning. This paper reports on ideas developed during an analysis of data from a project which involved young children (aged 5-7 years old) in a whole-class situation using dynamic geometry software (specifically Sketchpad). The focus is a classroom episode in which the children try to decide whether two lines that they know continue (but cannot see all of the continuation) will intersect, or not. The analysis illustrates how the children can move from an empirical, visual description of spatial relations to a more theoretical, abstract one. The arguments used by the children during the lesson transcend empirical arguments, providing evidence of how young children can be capable of engaging in aspects of deductive argumentation

    Literarische Kulturkritik als Dekodierung von Macht und Werten am Beispiel ausgewählter Romane von Upton Sinclair, Frank Norris, John Dos Passos und Sinclair Lewis: ein Beitrag zu Theorie und Methode der Amerikastudien als Kulturwissenschaft

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    Spaunhorst F-P. Literarische Kulturkritik als Dekodierung von Macht und Werten am Beispiel ausgewählter Romane von Upton Sinclair, Frank Norris, John Dos Passos und Sinclair Lewis: ein Beitrag zu Theorie und Methode der Amerikastudien als Kulturwissenschaft. Europäische Hochschulschriften : Reihe 14, Angelsächsische Sprache und Literatur ; 167. Frankfurt a.M.: Lang; 1987

    PeerPigeon: A Web Application to Support Generalised Peer Review

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    Peer Review (also known as Peer Assessment) is an important technique in learning, but can be difficult to support through e-learning due to the complexity and variety of peer review processes. In this paper we present PeerPigeon, a Web 2.0 style application that supports generalised Peer Review by using a canonical model of Peer Review based on a Peer Review Pattern consisting of Peer Review Cycles, each defined in terms of Peer Review Transforms. We also demonstrate how PeerPigeon makes use of a Domain Specific Language based on Ruby to define these plans, and thus cope with the irreducible complexity of the flow of documents around a peer network

    Group living homes for older people with dementia: Concept and effects

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    Eefsting, J.A. [Promotor]Pot, A.M. [Promotor]Depla, M.F.I.A. [Copromotor]Lange, J. de [Copromotor

    Cementbetonnen plaatbekledingen op oevers en dijken, bundeling van artikelen uit de vakpers 1990-1991

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    CUR; Proefproject: Open colloidaal beton a/s dijkbekleding; PT civiele techniek, april 1990. Burger, A.M., Eversdijk, P.J. en Hendriksma, A.M.; Open cementbeton toegepast a/s bekleding voor dijken; Zeewering Breskens, proefproject voor colloidaal beton; Land + Water, mei 1990. Burger, A.M., Eversdijk, P.J. en Hendriksma, A.M.; Colloidaal beton weerstaat zware storm en hoge golven; De praktijk van open cementbeton a/s Plaatbekleding; Land + Water, juni 1990. CUR; Cementbetonnen plaatbekledingen op dijken; Proefprojecten CUR; Civiele Techniek, No4, 1990. Vrieze, C.G. de; Betonnen dijken, groen a/s gras; Proeven met colloidaal beton voor begroeide rivierdijken; Land + Water No.6, juni 1991. Eversdijk, P.J. en Fase, A.G.; Breuksteen met colloidaal beton pakt rivierdijken goed in; Proefproject Opijnen in Julianakanaal; Land + Water No. 7/8, augustus 1991. Rijke, W.G. de en Burger, A.M.; Cementbetonnen plaatbekledingen op dijken en oevers; Praktische ontwerpmethode (1); Civiele Techniek, jaargang 46, No.3, 1991. Rijke, W.G. de en Burger, A.M.; Cementbetonnen plaatbekledingen op dijken en oevers theoretisch waterdicht; Praktische ontwerpmethode (2); Civiele Techniek, jaargang 46, No.4, 1991. CUR; oemonstratieproject open colloidaal beton Noordoostpolder; Civiele Techniek, No.3, 1991

    Strong singularity of singular masas in II<sub>1</sub> factors

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    A singular masa A in a II1 factor N is defined by the property that any unitary w &#8712; N for which A=wAw* must lie in A. A strongly singular masa A is one that satisfies the inequality ||EA- EwAw*||&#8734;,2 &#8805;||w- EA(w)||2 for all unitaries w &#8712; N where EA is the conditional expectation of N onto A, and ||&#8901;||&#8734;,2 is defined for bounded maps &#934; : N &#8594; N by sup{||&#934; (x)||2:x &#8712; N,||x||&#8804;1}. Strong singularity easily implies singularity, and the main result of this paper shows the reverse implication

    IoWoman, March/April 2004, Vol.34, no.2

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    Newsletter for the Iowa Commission on the Status of Wome

    IoWoman, March/April 2004, Vol. 34, no. 2

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    Newsletter for the Iowa Commission on the Status of Wome

    Gauge Fields and Strings

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    Based on his own work, the author synthesizes the most promising approaches and ideals in field theory today. He presents such subjects as statistical mechanics, quantum field theory and their interrelation, continuous global symmetry, non-Abelian gauge fields, instantons and the quantam theory of loops, and quantum strings and random surfaces. This book is aimed at postgraduate students studying field theory and statistical mechanics, and for research workers in continuous global theory

    The Sphinx Between the First and Second Pyramids. From a Photograph Taken by the Author about 6 a.m., After Sleeping at the Foot of the Sphinx.

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    Caption: "The Sphinx Between the First and Second Pyramids.From a photograph taken by the Author about 6 A.M., after sleeping at the foot of the Sphinx."The Great Sphinx with two pyramids behind. Black-and-white photograph
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