Let´s teach geometry Cañadas Santiago, María Consuelo Molina González, Marta Gallardo, Sandra Martínez-Santaolalla, Manuel J. Peñas, María Geometry Origami Secondary Problem Activity Tasks In this work we present an activity for High School students in which various mathematical concepts of plane and spatial geometry are involved. The final objective of the proposed tasks is constructing a particular polyhedron, the cube, by using a modality of origami called modular origami. 2010-11-03T07:07:29Z 2010-11-03T07:07:29Z 2010-05 info:eu-repo/semantics/article Cañadas, M. C., Molina, M., Gallardo, S., Martínez-Santaolalla, M. J. y Peñas, M. (2010). Let´s teach geometry. Mathematics Teaching, 218, 32-37. 0025-5785 http://hdl.handle.net/10481/5737 en http://creativecommons.org/licenses/by-nc-nd/3.0/ Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Association of Teachers of Mathematics