Then, the option for this project of pedagogical intervention if justifies in function of the professional experience of the involved educators in this process. The criterion for the choice of these pupils mentioned the fact to it of its proximity with regard to the closing of the two first cycles of Basic Ensino. In this perspective, one searched, throughout the duration of this project, to verify the development of definitive indicated geometric contents in the National Curricular Proposals of Mathematics - PCNs (BRAZIL, 1997) and that they were compatible with the continuity of these contents in the following series. Then, the main objectives of these projects had been? Conheceros angles, its units and the instruments of measure. Esteem the measures of amplitude and to establish some relations between these different units.

On the basis of to draw geometric figures the measures of its sides and its angles for the identification of the properties of internal addition of the angles. The Project of Pedagogical Intervention This pedagogical intervention had the duration of 2 (two) weeks with a horria load of 6 (six) hours per week. This project was carried through at 4 specific moments that had followed a sequence of ideas that had facilitated the transmission of the studied contents so that all the involved ones in this process could construct meanings for the geometric concepts. First Moment In this stage, the main objective was to explain the didactic sequncia of the activity proposal. Thus, first, the pupils would have to understand as to define the angles and to know as mediz them so that they could use them in the construction of geometric figures. Thus, the first action proposal was to investigate what the pupils knew on the angles. Although the word angle to be known by many pupils, the majority of them not possua a clear definition on its concept.

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