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This article presents results of a research that aimed to verify how students of master's degree in Mathematics decided about a problem-situation to use the artefact geoboard octododecagon and then solving problems of plane geometry using figural registers. After solving the problem and build this object, students used it, together with elastic bands, for solutions of one of the questions. From that first registration, it was initiated the development of visual ability, which continued to be developed with the second type of register, in the GeoGebra software. We conclude that the didactic involved in Geometrical Working Space-(GWS), organized, involving teachers, students and a university institution, allowed, from these types of figural registers, to develop the visualization as a mental construct.

Tratamento figural utilizando o Geoplano Octododecágono: um espaço de trabalho geométrico