This critical ethnography focused on improving the teaching and learning of chemistry in a diverse, urban, tenth-grade classroom in high-achieving magnet high school serving students of differing cultural, social, and historical backgrounds. Participants included all 26 students in the class, a university researcher (Sarah-Kate LaVan) and me as a teacher-researcher. Conducted within the methodological and theoretical frameworks of critical ethnography, this research employed collaborative research, autobiographical reflection, the sociology of emotions, and cogenerative dialogues as tools by which to examine the influence of structure and the social and historical contexts of lived experiences on teacher and student practices in the context of the science learning that took place in our classroom. The methods employed in this ethnography were designed to catalyze social transformation by identifying contradictions within structures and then finding ways to alter these structures to expand the agency of all those involved. Specifically I asked the following questions: 1) How do practices and schemas gained by being within school structures afford the structures of the classroom field? 2) How can the structures of the classroom be transformed to allow students and teachers greater exchange of capital (social, cultural, and symbolic)? 3) How does the exchange of capital afford agency for the participants? 4) How can participants' actions transform the structures associated with school and the classroom to break cycles of reproduction? Using multiple data resources such as field notes, videotape, interviews and artifacts, our research team was able to elicit and support findings at micro-, meso-, and macroscopic levels to answer these questions. / This research provides evidence of the ways in which structure shapes and is shaped by the practices and beliefs of students and teachers in different fields and how those, in turn, structure fields and afford agency for both the individual and the collective. The major findings of the study reveal that students and teachers need to participate in structured conversations that explicitly define and negotiate roles and rules for successful classroom interactions. One way to accomplish this is via participation in overlapping fields of cogenerative dialogue, a feature of our research methodology that emerged as salient during our research. This study offers administrators, teachers, and students a means by which to evaluate the ways in which structures shape the learning environment. Coupled with cogenerative dialogue, participants are provided a pathway for expanding agency in the classroom and in the school.

Submitted by Maria Bernadete Dos Santos (mariabpds@id.uff.br) on 2017-09-27T17:53:27Z No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Alexandre L. Torres.pdf: 2113771 bytes, checksum: e92b2eb0221ae3372965ba2accb94702 (MD5) Produto Final - Alexandre L. Torres.pdf: 357939 bytes, checksum: 0c6eccc1f4a85d82d3cd61292b293898 (MD5) / Approved for entry into archive by Biblioteca Central do Valonguinho Biblioteca Central do Valonguinho (bcv@ndc.uff.br) on 2017-10-03T17:14:22Z (GMT) No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Alexandre L. Torres.pdf: 2113771 bytes, checksum: e92b2eb0221ae3372965ba2accb94702 (MD5) Produto Final - Alexandre L. Torres.pdf: 357939 bytes, checksum: 0c6eccc1f4a85d82d3cd61292b293898 (MD5) / Made available in DSpace on 2017-10-03T17:14:22Z (GMT). No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Alexandre L. Torres.pdf: 2113771 bytes, checksum: e92b2eb0221ae3372965ba2accb94702 (MD5) Produto Final - Alexandre L. Torres.pdf: 357939 bytes, checksum: 0c6eccc1f4a85d82d3cd61292b293898 (MD5) / Este trabalho relata uma metodologia ativa para o Ensino de Ligações Químicas: Composição de paródias musicais como uma proposta de potencializar a aprendizagem significativa. Trata-se de uma pesquisa de natureza qualitativa, do tipo pesquisa-ação, e utilizou, para o levantamento de dados e para a tomada de decisões no decorrer do processo de pesquisa, questionários, observações da atividade orientada, depoimento dos educandos durante e após a elaboração das paródias musicais, fotos, vídeos e análise das letras das paródias. A pesquisa foi realizada no Colégio Pedro II, Campus Niterói, Rio de Janeiro e aplicada no 1º. ano do Ensino Médio Regular do ano letivo de 2016. Os resultados obtidos indicam que a construção de paródias musicais favoreceu o processo de ensino-aprendizagem, sendo esse recurso didáticos visto pelos alunos como alternativa para facilitar a aprendizagem. Consideramos que este trabalho pode ser replicado, abrindo possibilidades de novas criações e pesquisas sobre o emprego de estratégias de metodologias ativas no ensino de Ciências da Natureza. Com o intuito de incentivar esta aplicação, elaboramos, como produto dessa dissertação, uma videoaula onde é mostrada a aplicação da metodologia e com orientações sobre a forma de utilização. / This paper reports an active methodology for the Teaching of Chemical Bonds: Composition of musical parodies as a proposal to potentiate meaningful learning. For this purpose we used a qualitative methodology and, for data collection and decision making during the research process, questionnaires, observations of the activity oriented, testimony of the students during and after the elaboration of the musical parodies, photos, videos and analysis of the letters of the parodies. The research was carried out at Pedro II School, Niterói, Campus, Rio de Janeiro and applied in the 1st. Year of Regular High School during the academic year of 2106. The results indicate that the construction of musical parodies favors facilitate the teaching-learning process. We consider that this work can be replicated and open possibilities of new creations and research on the use of active methodologies for teaching of Natural Sciences. In order to stimulate this application, we elaborate, as a product of this dissertation, a videoconference showing the application of the methodology and guidelines on how to use it.