Performing a playful/mathematical activity using GeoGebra and Tangram discussed in the light Activity Theory

Abstract

The present article is an introduction to a master's research, to construct the theoreticalmethodological assumptions, being developed together with the Postgraduate Program in Teaching - PPGEn, of the State University of Southwest Bahia - UESB. We bring up the discussion of a mathematical activity: the construction of one of the figures that can be formed with the “pieces” of the Tangram, using the options of isometry in the GeoGebra plane. Initially, we will address the Engestrom Activity Theory (TA). Next, we will briefly explore GeoGebra using isometric options in the plane. Then we will build the figure and analyze it, based on a discussion in the light of Activity Theory, observing the degree of difficulty involved in this process, as well as, we will discuss the mathematical thinking involved in this form of non-traditional construction. In the final considerations, we will discuss how TA will allow the theoretical and methodological perspective of research under construction.