Volume 29, number 2. August 2017

DOI: 10.24844/EM2902
RESEARCH ARTICLES

How do Six to Nine Year-old Children Understand Geometrical Shapes
Melania Bernabeu y Salvador Llinares § ESPAÑA‰‰

Mathematization and Mathematical Work in Creating Simulators with GeoGebra
Rafael E. Gutiérrez A., Juan Luis Prieto G. y José Ortiz Buitrago § VENEZUELA

Intertextuality about Negative Numbers in Elementary School’s Children: An Historical Approach
Aurora Gallardo Cabello, José Luis Mejía Rodríguez y Gil Arturo Saavedra Mercado § MÉXICO

A Math Class about Word Problems in a one-room School. A Case Study
Laura Reséndiz, David Block y José Carrillo § MÉXICO-ESPAÑA‰‰

Stability and conceptual change about rate of change
Crisólogo Dolores Flores, Javier García-García y Angélica Gálvez-Pacheco § MÉXICO‰‰

Analysis of the Strategies Used by Talent Students, 12 to 14 Years-old, to Solve Mathematics Problem
Miguel Rodríguez, Pablo Gregori, Ana Riveros y David Aceituno § CHILE

TEACHING CONTRIBUTIONS

Identification of Strategies Used by Undergraduate Students in a Two-player Game
Angelina G. González Peralta, Juan Gabriel Molina Zavaleta y Mario Sánchez Aguilar § MÉXICO

Number Theory in Upper Secondary Education: Some Less Conventional Possibilities
José Luiz Pastore Mello § BRASIL

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