| Table of contents Relime vol.15 n.1 Ciudad de México Mar. 2012 Editorial | | | | · Nani gigantum humeris insidentes. RELIME and the open access Cantoral, Ricardo
| | | Articles | | | | · Implicative relations between strategies used in solving proportional and non-proportional problems Fernández, Ceneida; Llinares, Salvador
| | | | · Perceptions and school mathematics: units of measurements for trigonometrical functions at high school level Martínez Sierra, Gustavo
| | | | · Knowledge of future teachers in relation to the idea of fair games Ortiz, Juan Jesús; Batanero, Carmen; Contreras, José Miguel
| | | | · Cognitions and types of communication of mathematics teachers. Illustration of an analytical model in a divided episode Ribeiro, Miguel; Carrillo, José; Monteiro, Rute
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