The purpose of this study was to investigate the use of personifying terms by high school chemistry teachers, giving emphasis to the type of use-conscious or unconscious, to the occurrence of each type-animism and anthropomorphism (literal, metaphoric and teleological), to the reasons and contexts which entail their use and to teachers' conceptions related to their influence on teaching and learning. The project is structured in two parts: in the first, fifteen scripts for learning objects elaborated by a group of teachers (a total of thirty six teachers) who participated in the LabVirt project from "Escola do Futuro-USP" were analyzed. In the second part, the personifying terms detected on these scripts were used to elaborate a set of tasks and interviews (structured and semi-structured) which were used to analyze another group of six teachers. From these results, was possible to admit that the use of personifying terms is a common practice among these investigated teachers, although it happens unconsciously. This practice appears indistinctively between teachers with different academic profiles and experience. The recurrence of these terms is related to the abstraction of the concept studied. Behind, these teachers consider that the use of these terms helps in the teaching learning process. The metaphoric anthropomorphism is the most frequent term used. Besides that, the personifying terms were efficient analysis instruments to infer about the possible mental models of the teachers. These models were revealed by the use of the personifying terms in their respective expressed models. These results point to the fact that the unconscious use of the personifying terms impedes the autonomy of the teacher in terms of the influence of language about the teaching learning process.

This research’s aim was to analyze the mobilization in learning chemistry promoted by the collective action of three entrant students in higher education courses, in a college located in Santo André. For such, cognitive indicators mobilized by them while living individual and group situations on water’s boiling point, using Screencast video lessons as a motivational strategy, were analyzed. The fulfilment of these situations’ corresponding tasks was filmed, and the recordings were transcribed and analyzed with the help from the Transana software. The indicators used for the Discursive Textual Analysis were created by associating Vicente Talanquer’s Chemistry Knowledge Space to Gérard Vergnaud’s Theory of Conceptual Fields. The results displayed higher quantity and better quality to the indicators in situations with collective character, to the detriment to the ones with individual character. Thus, one might conclude that, under this research’s conditions, collective action, generated by a collective scheme, was capable of mobilizing the learning of chemistry. Keywords: collective action, space of knowledge of chemistry, collective scheme, theory of conceptual fields.