The Construction

Thus, the present project had as objective generality to organize the learning as a construction of knowledge on the part of the pupil, through practical lessons, and to draw the development of the subject to the base of activities to be carried through for the pupils. EDUCATION OF SCIENCES: AN EFFICIENT METHOD OF LEARNING In the application of the education of sciences if it waits on the part of the pupil a great capacity of abstraction with regard to concepts, theories and formularization of hypotheses for better absorption of the applied content, however, is necessary use of methods that complements the formularization of the teach-learning, involving the note of objectives, the correct choice and content organization, the planning is indispensable in the question education, the domain is not only enough is necessary to pledge in one better quality of education. The practical lessons in the education of sciences become component indispensable for the process of teach-learning of diverse contents of the scientific knowledge, in the direction to favor the construction of interrelation between the theory and the practical one, as well as relations between the conceptions you foresaw of the pupils and the new ideas that will be worked. Learn more at: The accomplishment of the experimental activities also must accomplishment of the experimental activities also must provide to the pupils the chance for the development of abilities and abilities, attitudes and values, beyond the construction of concepts (CAVALCANTE; IT HISSES, 2008). The experimentation has an important paper in not only instigating the formularization of hypotheses and the inquiry on the object of study, based on the memorization of facts and concepts that soon pass and yes in the reasoning and the search for the knowledge, promoting a significant learning (TERRAZAN; LUNARDI; Hernandes, 2003). The great challenge of the education of sciences is to finish with the idea of that the only one education strategy understands only in a set of memorized information to being.

Industrial Revolution

Methodology of Process The process is lead in a great container of steel, in format ovide, coated with clay or dolomita Its capacity goes of 8 the 30 tons of casting iron, being the typical load of about 15 tons. In the top of the container an opening, generally inclined exists for the relative side to its body, by which the iron is introduced and the end item, removed. In deep its some perforations, called tuyeres exist, by which air is forced for inside of the container. The converter is pivotado by trunnions, of form it to be able to be rotacionado to receive the load, turned to the normal position during the conversion and rotacionado to unload the casting steel to the end of the process again. The oxidation process removes impurities such as Silicon (Itself), Manganese (Mn) and Carbon (c), in the form of gaseous oxides or solid slags. The refractory covering of the container also has a paper in the process: The clay covering he is used in the acid process of Bessemer, in which it has little match in the raw material. When the match text is high, uses the basic process of Bessemer: The covering in this in case that it is of dolomita.

To give desired properties to the steel, other substances can after be added to the casting mass the complete conversion. The process Bessemer marked a revolution in the way to produce steel, therefore it allowed the steel production on a large scale, if becoming one of the bases of the Industrial Revolution. Before its process, the steel had a high price and in its place it was used pudlado iron. After the invention of Bessemer, the steel and the pudlado iron had been with similar prices, and, for comparison of properties, the industries had given preference to the steel.

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