Additive

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tandfonline.com – Children’s Spontaneous Additive Strategy Relates to Multiplicative Reasoning

Posted on by Troels Gannerup Christensen - Læst 13 gange

tandfonline.com har udgivet en rapport under søgningen “Teacher Education Mathematics”: Abstract Abstract We examine a hypothesis implied by Steffe’s constructivist model of children’s numerical reasoning: a child’s spontaneous additive strategy may relate to a foundational form of multiplicative reasoning, termed multiplicative double counting (mDC). To this end, we mix quantitative and qualitative analyses of 31 fourth graders’ responses during clinical, task-based interviews. All participants spontaneously used one of three additive strategies—counting-on, doubling, or break-apart-make-ten (BAMT)—to correctly solve an addition word problem (8 + 7). We found between-group differences, with asymmetric association of those ordinal variables. We found counting-on to be mainly related to premultiplicative reasoning and BAMT to mDC reasoning. We discuss the theoretical significance and implications of this corroboration of Steffe’s model. Link til kilde

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tandfonline.com – Additive manufacturing applications in medical cases: A literature based reviewPeer review under responsibility of Alexandria University Faculty of Medicine.View all notesAvailable online 6 October 2017View all notes

Posted on by Troels Gannerup Christensen - Læst 5 gange

tandfonline.com har udgivet en rapport under søgningen “Teacher Education Mathematics”: Abstract Abstract Background A significant number of the research paper on Medical cases using Additive manufacturing studied. Different applications of additive manufacturing technologies in the medical area analysed for providing the state of the art and direction of the development. The aim of work To illustrate the Additive Manufacturing technology as being used in medical and its benefits along-with contemporary and future applications. Materials and methods Literature Review based study on Additive Manufacturing that are helpful in various ways to address medical problems along with bibliometric analysis been done. Result Briefly described the review of forty primary applications of AM as used for medical purposes along with their significant achievement. Process chain development in the application of AM is identified… Continue Reading →