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Uma análise da perspectiva investigativa em material didático de ciências: coerência com a proposta pedagógica?
(Universidade Federal de São Carlos, 2014-02-06) Oliveira, Andréia Aparecida Arruda de; Julio, Josimeire Meneses; https://lattes.cnpq.br/8805879632103815; https://lattes.cnpq.br/4090226355558077
In the present research, we analized the pedagogical proposal from the learning system of SESI/SP, implanted in the educational web of the city of Araraquara, inland São Paulo. The four books to teach Science recommended by this proposal, used in the 6th to the 9th years (children aged 11 to 14, secondary school) were also analyzed both analyses were made by an investigative perspective. We searched to verify the consonance and coherence between the fundaments of the Proposal and what is executed in the books in terms of this proposal. The methodology used to orient this research was the analysis of the content. First, we investigated the fundaments of the Proposal in three dimensions: how the school curriculum is organized, what the teaching concept for Sciences is and how the investigative perspective works these topics made us capable to analyze the consonance between the Proposal and the activities of the books. Later, we characterized and quantified every each activity according to the categories of analysis created under the base of the aspects present in an investigative teaching approach. The created categories were: proposal of problems, formulation of hypotheses, observation of phenomena and objects, collecting data, interpreting data, elaboration of conclusions, systematization and socialization of the results. We also investigated the degree of openness provided by the book to the students, according to the previous categories. The data was organized through charts and the confection of evaluative cards, and when it was interpreted by these tools, it has allowed us to know better about the Science teaching approach transmitted in this material. The results indicate consonance between the Proposal and the material, although some considerations must be made about it.
Água de reúso em rabanete (Raphanus sativus L.): implicações agronômicas e sanitárias
(Universidade Federal de São Carlos, 2014-02-06) Mendes, Paulo Eduardo Ferreira; Souza, Claudinei Fonseca; https://lattes.cnpq.br/4858219292242433; https://lattes.cnpq.br/1208341707443422
Due to increasingly irrigation water source scarcity, treated wastewater (TWW) is becoming a more attractive by nutrients source, showing sanitary and agronomics feasibility. In this way, this research evaluated, in a greenhouse conditions influence of superficial drip irrigation on radish (Raphanus sativus L.) cv. Crimson Giant production and nutritional status, as well as, soil chemical attributes changes; and, soil and radish sanitary contamination risk submitted to two water sources. The experiment was carried out at CCA/UFSCar, Araras, SP and a completely randomized design was adopted, with two treatments [AB- potable water (PW) and AR- treated wastewater (TWW)]. Soil and radish sample were submitted to sanitary analyses. The results showed that drip TWW didn t commit radish nutritional, production and increased macronutrients availability. However, soil sodium adsortion ratio (SAR) and exchangeable sodium percentage (ESP) increased by TWW application, but without salinization and sodification risk. Furthermore, radish showed out of sanitary conditions, indicated by the E. coli and total coliformis contamination, impossible its commercialization and in natura consumption. Considering the obtained results, suggest take appropriate action to improve the TWW treatment efficiency and promote radish sanitary conditions. The obtained results demonstrated the wastewater reuse feasibility as a source of nutrients to radish, substituting or reducing the application of commercial fertilizers and reducing the cost production.