Media type: E-Article Title: [NO TITLE AVAILABLE] Contributor: Castro Palacio, Juan Carlos; Velázquez Abad, Luisberis; Crespo Madera, Elio; Monsoriu, Juan A. imprint: FapUNIFESP (SciELO), 2011 Published in: Revista Brasileira de Ensino de Física Language: Not determined DOI: 10.1590/s1806-11172011000300013 ISSN: 1806-1117 Keywords: General Physics and Astronomy ; Education Origination: Footnote: Access State: Open Access