The traditional image of science leads us to see a science that belongs only to a few people: scientists, whose knowledge is compiled in books. This image of science is completed usually replicated in schools; especially from the teaching of natural sciences. A proposal to realize that taking an image different from the usual science is presented in this research ; in our case , cultural and mutable, from the classroom you can achieve real development in the processes of scientific knowledge. From this perspective teachers and students are active part of the construction of knowledge from the collective elaboration of objects of study.