caa a22 4500 445882174 CHVBK 20180317145547.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10649-010-9296-8 doi (NATIONALLICENCE)springer-10.1007/s10649-010-9296-8 Santi George NRD, Department of Mathematics, University of Bologna, Bologna, Italy aut Objectification and semiotic function [Elektronische Daten] [George Santi] The objective of this paper is to study students' difficulties when they have to ascribe the same meaning to different representations of the same mathematical object. We address two theoretical tools that are at the core of Radford's cultural semiotic and Godino's onto-semiotic approaches: objectification and the semiotic function. The analysis of a teaching experiment involving high school students working on the tangent, shows how students' difficulties in ascribing sense to different representations of a common mathematical object can be traced back to the kind of objectification processes and semiotic functions they are able to establish. Springer Science+Business Media B.V., 2011 Mathematical objects nationallicence Semiotics nationallicence Meaning nationallicence Activity nationallicence Objectification nationallicence Semiotic function nationallicence Educational Studies in Mathematics Springer Netherlands 77/2-3(2011-07-01), 285-311 0013-1954 77:2-3<285 2011 77 10649 https://doi.org/10.1007/s10649-010-9296-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10649-010-9296-8 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Santi George NRD, Department of Mathematics, University of Bologna, Bologna, Italy aut NATIONALLICENCE 773 0- Educational Studies in Mathematics Springer Netherlands 77/2-3(2011-07-01), 285-311 0013-1954 77:2-3<285 2011 77 10649 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer