@inproceedings{psycharis:hal-00190695, TITLE = {{Normalising Geometrical Constructions: A Context for the Generation of Meanings for Ratio and Proportion}}, AUTHOR = {Psycharis, Giorgos and Kynigos, Chronis}, URL = {https://telearn.hal.science/hal-00190695}, BOOKTITLE = {{Annual Meeting of the International Group for the Psychology of Mathematics Education (PME 28) (28th, Bergen, Norway, July 14-18, 2004)}}, ADDRESS = {Bergen, Norway}, PAGES = {65-72}, YEAR = {2004}, KEYWORDS = {LOGO ; task design ; ratio and proportion ; integrated representations ; construction of mathematical meanings}, PDF = {https://telearn.hal.science/hal-00190695/file/Psycharis-Giorgos-2004.pdf}, HAL_ID = {hal-00190695}, HAL_VERSION = {v1}, }