Los conocimientos previos de química orgánica: El rol del lenguaje químico en el aprendizaje de los compuestos aromáticos en el nivel superior.

FARRÉ, A.; ZUGBI, S.; PONCE, J.; LORENZO, M.G.

Santiago de Chile

Congreso; I Congreso Latinoamericano de Investigación en Didáctica de las Ciencias Experimentales y de las Matemáticas, I Congreso Chileno de Didáctica de las Ciencias Experimentales, XI Seminario Internacional en Didáctica de las Ciencias Experimentales, V Encuent; 2012

Pontificia Universidad Católica de Chile

In this work we decided to investigate the impact of the chemical language in previous knowledge of a central theme of Organic Chemistry, structure and reactivity of benzene. We designed a task with open and closed questions to study different aspects of this theme. Students spontaneously resorted to formulas to answer open questions, so it evidenced its use as a cognitive amplifier. It was also found that symbolic level conditioned submicroscopic interpretation. However, formulas did not become an instrument of thought given students? limitations in predicting reactivity. These results permit us to raise again the starting point for planning teaching and reflect on the importance of the chemical language appropriation when learning science.