Construction of the scale area 5th grade students

The methodological approach focuses on teaching and learning of the magnitude fifth grade area of basic primary education. It designs and implements a sequence of activities under the theory proposed by Brousseau teaching situations, and is structured according to the phases for the construction of the scale raised by Chamorro and Belmonte, which are mapped with Piagetian stages of development measuring thereby obtaining more detailed characterization to build any perceptible magnitude with the respective measurement unit in a progressive manner, in which are incorporated Rosa didactic knowledge Corberan which emphasize the magnitude treatment area and meet student needs.