Resumen

LOMBARDI, Giovanna; CABALLERO, Concesa  y  MOREIRA, Marco Antonio. The concept of external representations as theoretic base to generate strategy that promotes the lecture of scientific language. Revista de Investigación [online]. 2009, vol.33, n.66, pp.147-186. ISSN 1010-2914.

The study of external representations systems used to build language within the framework of a disciplinary fi eld presents the opportunity to study school activities from a semiotic perspective. Thus, we centered our attention on the analysis of pictorial representations (PR) which constitute an important element for the construction of the scientific discourse, which is “opaque” to students when they read a text with the purpose of learning something from it. Three types of pictorial representations extensively used in the scientific language were characterized: cartesian graphs, tables and structure diagrams

Palabras clave : External representations; pictoric representation; cartesians graphics; tables and structure diagrams.