%0 Conference Proceedings %T Semiotic mediation for algebra teaching and learning. %+ Department of Mathematics %A Mariotti, Maria Alessandra %A Cerulli, Michele %< avec comité de lecture %( Proceedings of the 25th conference of the International Group for the Psychology of Mathematics Education (PME), volume 3 %B 25th conference of the International Group for the Psychology of Mathematics Education (PME) %C Utrecht, Netherlands %Y Edited by Marja van den Heuvel-Panhuizen %P 225-232 %8 2001 %D 2001 %K semiotics %K didactic of mathematics %K semiotic mediation %K algebra symbol-manipulation skills %K proving %K CABRI %K algebra theories %K theoretical thinkings %K theory of instruments of semiotic mediation %K technology enhanced learning (TEL) %K instruments %K technology enhanced learning in mathematics (TELMA) %K instruments of semiotic mediation %K semiotic approach %K class discussions %K conjecturing %K mathematical class discussion %K equivalence relationship %K symbolic manipulation %K field of experience %K algebra as a theory %K mathematical discussions %K internalization %Z Computer Science [cs]/Technology for Human LearningConference papers %X In the theoretical framework of Vygotskij's Theory this report discusses the mediating function of particular tools available in a microworld. Following the analysis carried out by one of the authors, in the case of Cabri a new microworld has been set up and a teaching experiment carried out. Some results are reported and the theoretical notion of semiotic mediation discussed. %G English %2 https://telearn.hal.science/hal-00190512/document %2 https://telearn.hal.science/hal-00190512/file/Mariotti-M-A-Cerulli-M-2001.pdf %L hal-00190512 %U https://telearn.hal.science/hal-00190512 %~ TELEARN %~ TICE %~ TEL