Um estudo sobre o pensamento estatístico: componentes e habilidades

Abstract

The present research has for purpose to investigate the conceptions of teachers of basic teaching about statistical mind. Bellow the referential of mind s components of Gal (2002), the levels of statistical literacy of Shamos (1995) and the measurements of pathern PPDAC (Problem, scheme, data, analyse and conclusion) of Wild e Pfannkuch (1999), is accomplished the investigation for means of diagnostic instrument and analyse of didactics books of mathematic. This job introduce the study about the statistical mind, explanations for nim, components and abilities necessaries to statistical literacy. In the following, we analysed two collections of didactics books bellow the viewpoint of Praxeology Organization (CHEVALLARD, 1996), with how to identify the tasks, technic and theoritical-technological discourse, privileged for them. The study of didactic books, allowed identify, of current teaching, the approach tecnicist of statisti of the fundamental teaching. Toward investigate the teacher s conception, such as the influence of the didactic book in her lecturing skill, applied the questionnaire in mathematic teachers of the basic and intermediate teaching of Belo Horizonte s schools. The results was submitted at analysis helped of software C.H.I.C. (Classification, hierarchic, implicative and cohesitive), with how to associate the teachers s responses. The analyse that allowed to conclued that the teachers develop statistics abilities propitious to literacy on cultural level, instead of appropriate functional, of this shool segment. Maybe, influenced by the didactics books that support seeing through statistc of tecnicist, emphasising the use of tabulares record and graphics, beyond the algoritimic interpretation of conception to arithmetic s mean