Towers affirm that: a notable exists difficulty to bring up to date the contents in the book-text, something that if become visible if withholding in them to analyze the degree of delay in forming part of its agenda of the scientific new features, artistic, literary, etc., that is producing day the day. (1994, P. 177) Therefore it is important that the professors search in books the subjects that are boarded in the lessons and analyze if these are brought up to date and adjusted for reading works. Many of the texts that the didactic books of sciences bring, introduce the concepts and meanings, but do not obtain to make that educating relates the theory to the practical one. In these cases material printed matters can be used even though also and, to elaborate its proper texts, being thus stimulated the many forms to read without being the traditional reading of the book. According to Axe (2000), to contextualizar is a basic strategy for the construction of significaes. In the measure where it tacitly incorporates perceived relations, the contextualizao enriches the communication channels between the cultural luggage, almost always essentially tacit, and the explicit or explicitveis forms of manifestation of the knowledge.
The contextualizao in the education of sciences facilitates the learning of the substance that possesss innumerable terms and concepts that many times are not of easy agreement. In accordance with Kock and Elias (2006) ' ' the reading is an active process of construction of directions, needing the interaction between reader and author, having as vehicle texto.' ' Being thus when the writing relates the substance of the life of educating the learning it flows parallel what he is being taught, therefore to the step that if teaches and if it reads we go constructing to know on the subjects. The choice of the school In the first semester of 2010, Period of training III in Sciences, of the course sciences biological licenciatura, in a state school in the city of the Rio Grande, started the obligator period of training in a group of seventh series.