This article portrays an enlightening view of the Brazilian scenario in the educational context. It is noticed that education is undergoing many changes and this has been happening for years, however, the current political conjuncture is with new proposals for education reforms. This article will address these changes and their possible consequences. Its main objectives are to analyze the guidelines of the Common National Curriculum Base (BNCC) for High School, identify the contents of the Chemistry discipline that will be removed from the curriculum and the possible social transformations that this change will generate. For such discussions, a theoretical study was carried out on the BNCC, as well as chemistry textbooks that could prove the impoverishment of the chemistry content in the base. It was found that some specific contents were excluded so that transdiciplinarity could occur between the disciplines of Chemistry, Physics and Biology that make up the area of Natural Sciences and their Technologies.

This article portrays a view of the Brazilian scenario in the educational context. It is noticed that quality is a very discussed point in Brazilian education, it can be seen that this concept / category / paradigm is often used in multiple ways. Therefore, this text aims to: present the debate on the definition of quality education; discuss about: the Common Base National Curriculum-BNCC and the Knowledge of Natural Sciences in Elementary Education; demonstrate one of the evaluative policies carried out in Brazil in basic education. To this end, a bibliographic study of texts with a theme focused on teaching in the country, educational policies and even on the BNCC was carried out, with the aim of analyzing the Brazilian educational system. Finally, it was found that despite the fact that public policies are advancing in terms of projects to improve education, there is still a long way to reach educational quality.

This article deals with Russian Pedagogy, its historical context and the contributions of this movement to the education of the time. Thus, the general objective is to analyze the contributions of Pistrak and his works in the movement called Russian Pedagogy. To this end, a theoretical study was carried out, a bibliographic study centered on the context of ancient Russia and the Pedagogy movement between 1917 and 1932. The focus was the author Moisey Mikhaylovich Pistrak and the school of work. Finally, it was observed that the school of work aimed at the formation of a new socialist society. In this sense, the nature of education, the cultural role of the school of work and the relationship between science and work are the three conclusions drawn by Pistrak on school work. Thus, a more concrete definition of the word work is to have a participation in the student's life and in its social construction, both inside and inside the classroom and science as a generalized and systematized guiding practice of this activity

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Este trabalho analisou a viabilidade econômica da produção Wean to Finish de suínos em São José do Rio Pardo nas produções independente e integrada. Foram levantados os custos fixos e variáveis anuais de manejo e manutenção de instalações, despesas administrativas e fiscais e custos da construção hipotética de uma instalação de 1.000 m2 em uma propriedade com granjas já em funcionamento. O plantel projetado foi de 1.000 animais por lote, sendo produzidos dois lotes anuais. Foram construídos dois fluxos de caixa, um para produção independente e outro para produção integrada, ambos para o período de 21 anos. O valor presente líquido (VPL) apresentou viabilidade apenas para a produção integrada, com R$ 634.055,44 de lucro. A taxa interna de retorno (TIR) para tal foi de 28,40%. Contudo, devido ao prejuízo encontrado para o suíno terminado, a viabilidade da produção integrada mostrou-se incerta e de alto risco ao suinocultor local.