The polarization between scientific and the daily one associate, therefore, to a certain hierarquizao of the knowledge, in which it has better and worse knowledge, superior and inferior, more valid and less vlidos' '. According to Garci'a, it does not exist intermediate knowledge between daily knowing and the scientific one, having with this a distanciamento that is recurrent of the proper nature of each knowledge, instituted socially and that one multiplies inside of the effect of the scientific spreading. The distanciamento is constituent of legitimation strategy, that allows the escolarizado knowledge, to establish, with science, its anchorage legislator. With this, the more distant it to establish itself of the common and daily knowledge, more ancestry will have on the society and what it considers as legitimate. 3.3.Relaes of the daily knowledge with the practical pertaining to school These relations are visualized inside of the context of the activities that to know involve them daily, as we can verify in speaks of some of the interviewed ones, making possible to establish some categories of analysis, such as: ) In the development of projects; b) In the development of Space Geometry; c) In situation-problem; d) Describing a trip, purchases, conviviality with friends; e) The administration of the monthly allowance; f) Use of brochures, reviewed announcements periodicals; g) Studying a fact in evidence (elections, championships, pantry of the world, etc.); h) Calculations of area, using the physical space of the pertaining to school unit; i) Classification rabbet of parts; To follow, we will analyze some you speak that experiences with the daily knowledge register and that they disclose as this knowledge is identified, establishing relations with the pertaining to school knowledge. Survey of prices of merchandises during one determined period, in order to calculate the difference of the prices (operations with decimals) and percentage of increase. We can bring questions, problems that are gifts in the reality of the pupil.