The assumption of the present study is that teachers should possess an adequate understanding of the nature of science and scientific method and hence this aspect was investigated. The empirical research carried out with Secondary School teacher trainees at Botswana colleges of education showed the following: Subjects possess an adequate understanding of some aspects of the nature of science and several aspects of the scientific method. They however do not have an adequate understanding on certain aspects of the nature of science. An association was found between the nature of science, type of educational institution attended, years of study and majoring in science. A positive association was found between scientific method and years spent studying. The present study recommended the inclusion of history, philosophy and sociology of science in the curriculum of teacher education. / Educational Studies / M. Ed. (with specialisation in Natural Science Education)

In this dissertation, I investigate whether the conceptualisation of computerised technological phenomena is influenced by social variables, in particular exposure to the computer. The conceptualisation and behaviour of a group of students majoring in technology-related fields were studied. Through the application of Conceptual Blending Theory, the multi-modal desktop metaphorical blend (DMMB) (as an electronic representation of an actual office desktop) was focused on. The participants were provided with tasks with the aim of determining whether they conceptualise the electronic desktop as a literal ‘thing-in-itself’ or as an e-version of their actual desks. The intent was to examine to what extent social variables, especially exposure, motivate the nature of the conceptualisation. Therefore, it is hypothesised that exposure, regarded as the primary variable in this study, influences conceptualisation of the DMMB to the extent where the it either loses its metaphoric quality in participants, who maintain regular and prolonged exposure to the computer, or retains the metaphoric quality of the DMMB in participants, who are not exposed to the computer on a regular and prolonged basis. Two groups were distinguished based on the extent of the individual participants’ exposure to computer technology, namely a high-exposure group and a low-exposure group. A mixed method approach was used to test and analyse data collected from individual participants, as well as from the high- and low-exposure groups. Methods used to test these hypotheses included questionnaires, word association (a conceptual task), controlled observation (a behavioural task), and interviews. The resulting data were analysed by means of a thematic interview analysis and non-parametric statistical tests. / Linguistics and Modern Languages / M.A. (Linguistics)

Le mémoire vise à proposer une épistémologie pragmatique de la science scolaire à l’école primaire. Un défaut de compréhension de la nature de la science pourrait en effet justifier en partie les difficultés de l'enseignement des sciences par démarche d'investigation. Une étude des représentations de la science chez les enseignants et futurs enseignants confirme qu’ils n‘en ont pour la plupart qu‘une vision assez floue, relevant majoritairement d'une forme d'empirisme naïf. Un jeu opératoire de critères de scientificité adapté au contexte de l’école est développé dans une approche "bottom-up" partant des pratiques de classe effectives. Sa capacité à discriminer pratiques scientifiques et non scientifiques est discutée, de même que les implications didactiques et épistémologiques de son utilisation. Il est en particulier possible d‘en déduire des définitions évolutives d‘une science scolaire normative mais subsidiaire par rapport à la “science des scientifiques”. Cet outil épistémologique s’avère bien reçu par les enseignants auxquels il a été présenté. Le test en situation de différentes stratégies pédagogiques fait apparaître que les plus efficaces pour l'appropriation de critères de scientificité ajoutent à la démarche d’investigation une composante épistémologique explicite. Certains éléments de méthode scientifique peuvent être travaillés dès la Grande Section de maternelle (5-6 ans) : des élèves ayant vécu des démarches d’investigation s’avèrent capables de revendiquer la primauté de l’expérience, mais aussi de mettre en œuvre des tests relatifs à plusieurs critères de scientificité et de s‘approprier les rudiments de la modélisation scientifique. / The purpose of this thesis is to propose a pragmatic epistemology of school science in primary school. Indeed, some of the difficulties encountered by inquiry-based science education may be attributed to a lack of understanding of the very nature of science. A survey on the perception of science by incumbent teachers and teachers in training confirms that most of them have a relatively vague vision grounded in a form of naive empiricism. A practical set of criteria of scientificity adapted to the school context is developed through a “bottom-up” approach based on actual classroom practices. Its efficiency at discriminating scientific and non-scientific practices is discussed, as well as the didactical and epistemological implications of its use. It is thus possible to deduce evolutive definitions of a school science that is normative yet subordinated to the “science of scientists”. Teachers responded positively to this epistemological tool when it was presented to them. Among the different teaching strategies tested in a classroom, the most efficient for the acquisition of criteria of scientificity were those which supplemented the inquiry process with an explicit epistemological component. Some elements of scientific method can be introduced as early as kindergarten (5-6 y.o) : after experimenting with inquiry processes, pupils have proved able not only to claim the primacy of experiment but also to run tests related to different criteria of scientificity and acquire the basics of scientific modeling.

´Scientific revolution´, as a concept, is both ´philosophically general´ and ´historically unique´. Both dual-sense of the term alludes to the occurrence of great changes in science. The former defines the changes in science as a continual process while the latter designate them, particularly, as the ´upheaval´ which took place during the early modern period. This research aims to demonstrate how the historicists´ critique of the justification of the traditional claims of science on the basis of the scientific processes and norms of the 16th and 17th centuries, illustrates the historical/local determinacy of the science claims. It argues that their identification of the contextual and historical character of scientific processes warrants a reconsideration of our notion of the universality of science. It affirms that the universality of science has to be sought in the role of such sources like scientific instruments, practical training and the acquisition of methodological routines / "Revolución científica", como concepto, se refiere a la vez a algo «filosóficamente general» e « históricamente único". Ambos sentidos del término aluden a la ocurrencia de grandes cambios en la ciencia. El primero define los cambios en la ciencia como un proceso continuo, mientras que el último los designa, en particular, como la "transformación", que tuvo lugar durante la Edad Moderna. Esta investigación tiene como objetivo demostrar cómo la crítica de los historicistas a la justificación de las características tradicionales de la ciencia sobre la base de los procesos y normas científicos de los siglos XVI y XVII, ilustra la determinación histórica y local de los atributos de la ciencia. Se argumenta que la identificación del carácter contextual e histórico de los procesos científicos justifica una reconsideración de nuestra noción de la universalidad de la ciencia. Se afirma que la universalidad de la ciencia se ha de buscar en el papel de tales fuentes como instrumentos científicos, la formación práctica y la adquisición de rutinas metodológicas