343 resultados para Ensino da Física e da Química
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Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC
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Pós-graduação em Docência para a Educação Básica - FC
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The Experimentation in Science Education is used since the beginning of 19th century and has it origins linked to the laboratory classes realized in the universities. This classes used, and in many cases, still using the Scientific Method initially purposed by Descartes in 18th century for the construction of scientific knowledge. One of the allegations is that the method would be the fast stand the cheapest to generating scientific information, although, it is based on the empiricism-positivism, which considers that all people have the same learning skill and they can start from the same spot. Through this paper, is not intended to contest the scientific methodology, or even its importance in science history, but just try to identify and describe other possibilities in using of the teaching laboratory, which can make the learning easier for a much higher number of students, contemplating different cognitive capabilities and generating a better scientific knowledge learning and its transfer to practical situations in life, besides, they can provide more significant learnings. Over the text, four different purposes will be presented, which depart from the laboratory use for theory evidence, incapable to make students use the learned knowledge outside the school, until that which develops in the students capabilities to scientifically argue about their day to day themes
Aprendizagem na contemporaneidade: jogos digitais no novo cenário em que caminha o ensino de química
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Having in sight the current inertia found on the school physical environments as well as on the High School learning methods used, digital games appear as a different tool to build the individuals'/students' knowledge and becomes a driving factor for this research. The usage of this media resource tries to rescue a stimulant type of learning focused on the students' experiences while getting them closer to Science, Technology and Society (STS). The usefulness of this method falls short, however, without the capacitated guidance of a teacher. A literature review has been made about the possible schooling that electronic/digital games provide; it also brings the opinions of students and teachers to help comprehend how the insertion of this new tool in the classroom happens, as well as its efficiency and acceptance. Having in sight the relationship between individuals and the preoccupations about the future of mankind, components of humanity's destiny have been evidenced in the teaching of Chemistry. It is possible to conclude that these games can, indeed, help in the teaching process, although it is necessary that they develop a main didactic role, linked to the teaching of concepts and content, or else become only educational for that matter. Using the tools given by digital games it is possible, for example, through playfulness, to teach the theory of many abstract models, mathematical equations and chemical formulas, making it possible then to grab the students' attention, to thrill them and to develop their participation based on the experience they so often already have with cell phones and personal computers
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The lack of motivation and the excessive quantity of subject memorization are some of the main causes for the disinterest of students when learning chemistry. To change this scene, it's necessary that the teachers reinvent themselves and innovate during their classes, making use of alternative methodologies for the chemistry teaching process. The objectives of this work are to evaluate, from a constructive methodology approach, the characteristics, possibilities and limitations of some techniques and methods of teaching. This analysis allowed to present the results in the form of a table summarizing these characteristics and can be useful for teachers to choose the right strategy to be used
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The profile of students has changed a lot, mainly due to the advent of new technologies, which in attractiveness has attracted the attention of students, and becoming a difficulty the teacher to attract the attention of the student to class. In this sense, it is needed reformulations in pedagogical practice so that the student's attention turns to science, arousing their curiosity. Thus, in Chemistry and Science Teaching, and lectures must encourage discussions about science, and one of the possible ways to insert dynamic classes is by inserting the trial. Thus, this present course conclusion work aims at presenting and discussing the ways in which Experimentation in Chemistry and Science Teaching has been applied in classrooms, the difficulties of its implementation as a teaching methodology, as well as the advantages and disadvantages of their use depending on the type of approach, training teachers, among other factors
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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The research examines the relationship between drug use and physical activity in school. We used an anonymous self-questionnaire among students in elementary and middle school in a Brazilian city. The mean age was 15.1 ± 1.5 years. There was no significant difference between energy expenditure and drug use, crack use except in life that related to significantly higher values of energy expenditure and habitual for the past thirty days, cocaine use was associated with higher energy expenditure habitual (p <0.05). We emphasize the need investigations addressing specific features of involvement in school and extracurricular activities, physical activity, drug use and their contributions to school health.
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The aim of this work was to evaluate the effect of the addition of different surfactants in physical and chemical properties of spray solutions, droplets spectra and drift potential on agricultural spraying. The surfactants and concentrations (v v-1) were: Haiten (0.1%), Antideriva and Intec (0.05% and 0.1%). The following characteristics were analyzed: surface tension, viscosity, density and electric conductivity. The droplet size spectrum was determined by a laser particle analyzer (Mastersizer S®, version 2.15) including measurements of volume medium diameter (VMD), the percent of droplets below 50 and 100 μm (V50 e V100) and index span. In order to estimate the drift potential, a series of wind tunnel tests were performed with a Teejet XR 8003 flat fan nozzle at 200 kPa (medium droplets) used to apply the spray solutions containing water, the adjuvants and a food color dye (Brilliant blue FD & C no 1) at 0,6% m v-1. The drift was collected on nylon strips transversally fixed along the tunnel at different distances from the nozzle and different high from the bottom part of the tunnel. Drift deposits were evaluated by spectrophotometry. The results showed that the addition of adjuvants changed physical and chemical properties of spray solutions in different magnitudes according to the surfactant. Surfactants changed the droplet spectrum and drift potential, indicating that higher VMD and smaller V100 induced higher percentage of drift.
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Pós-graduação em Docência para a Educação Básica - FC
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC