@inbook {MATHEDUC.06297582,
    author       = {Ferrara, Francesca and Maschietto, Michela},
    title        = {University students at work with mathematical machines to trace conics.},
    year         = {2013},
    booktitle    = {Proceedings of the 37th conference of the International Group for the Psychology of Mathematics Education ``Mathematics learning across the life span", PME 37, Kiel, Germany, July 28 -- August 2, 2013. Vol. 2},
    isbn         = {978-3-89088-288-8},
    pages        = {305-312},
    publisher    = {Kiel: IPN--Leibniz Institute for Science and Mathematics Education at the University of Kiel},
    abstract     = {Summary: This paper aims to investigate the way past experience with some tools to draw conics becomes part of the experience of designing a new drawer. In particular, it centres on the thinking processes of a group of university students who have the following task: to design a hyperbola drawer. The analysis is carried out using the perspectives of transfer of learning and instrumental approach, and focuses on utilization schemes and the interplay between scientific and technological aspects.},
    msc2010      = {C35xx (G75xx U75xx)},
    identifier   = {2014c.00221},
}