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Computer design and construction: Mauricio Soto (Costa Rica) and Jonathan Calderón (Costa Rica).

Academic and intellectual design: Angel Ruiz (Costa Rica), Chairman American Committee on Mathematics Education.

CIAEM acknowledges the assistance in translation:

* French by Dr. Rodrigo Cambray (Mexico).
* English by Dr. Eliana Rojas (Chile-US).
* Portuguese by Dr. Claudia Groenwald (Brazil).