Rev. Fac. Cienc. Tecnol.

Table of contents
Rev. Fac. Cienc. Tecnol. no.33 Bogotá Jan./June 2013

Editorial

	· Constructivist didactics practices: criteria for analysis and characterization Custódio, José Francisco; Alves Filho, José de Pinho; Clement, Luiz; PiccoliRichetti, Graziela; Kaiana Ferreira, Gabriela · abstract in English \| Portuguese \| Spanish · text in Portuguese · Portuguese ( pdf )

Articles from research

	· Pedagogical Content Knowledge on Electric Field Teaching Reyes Roncancio, Jaime Duván; Martínez, Carmen Alicia · abstract in English \| Spanish \| Portuguese · text in Spanish · Spanish ( pdf )

	· What kind of conceptions do science students and teachers have of the critical thinking approach? Matarredona, Jordi Solbes; Torres Merchán, Nidia Yaneth · abstract in English \| Spanish \| Portuguese · text in Spanish · Spanish ( pdf )

	· Children's representations about numeric notations Cañellas, Adriana Marisa; Rassetto, María Josefa · abstract in English \| Spanish \| Portuguese · text in Spanish · Spanish ( pdf )

	· Cross-sectional study on secondary students' attitudes towards science. Adaptation and application of an attitude questionnaire Molina, Manuel; Carriazo, José; Casas, Jaime · abstract in English \| Spanish \| Portuguese · text in Spanish · Spanish ( pdf )

Educational cases reports

	· Some reflections about technology and teaching Gómez Ortiz, Luis Guillermo; Santiago Galvis, Álvaro William · abstract in English \| Spanish \| Portuguese · text in Spanish · Spanish ( pdf )

	· Preliminary characterization of colloidal system disseminated by specialized texts, and convergence of the established representations by chemistry pre-service teachers Bernal Patiño, Andrés Manolo; Laverde Perdomo, Jennifer Carolina; Parra Estrada, Natalia; Sanabria Rojas, Quira Alejandra · abstract in English \| Spanish \| Portuguese · text in Spanish · Spanish ( pdf )