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Heureka: páginas lúdico-matemáticas

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Visit this site: http://www.rodoval.com/heureka/

Author:Rodolfo Valeiras Reina
Description: Home page of a Spanish math enthusiast from Cádiz, España. Calidociclos (a kaleidocycle is a ring of tetrahedra joined edge to edge; as you twist it inward or outward, the tessellations on the faces of the tetrahedra meet in new ways); Problemas favoritas: El hato de vacas, Los troncos, Los tres números, Los cocos; Cifras [Cada prueba consiste en obtener a partir de seis números dados, utilizando sólo sumas, restas, multiplicaciones y divisiones (y manteniéndose dentro del campo numérico de los números enteros positivos), otro número de tres cifras determinado]. Problemas de Snark.

Levels: Middle School (6-8), High School (9-12)
Languages: Spanish
Resource Types: Problems/Puzzles
Math Topics: Basic Operations, Number Sense/About Numbers, Polyhedra, Symmetry/Tessellations

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