CONSTRUÇÃO DE OBJETOS DE APRENDIZAGEM EXPLORANDO A FRONTEIRA ENTRE OS ASPECTOS MICRO, MACROSCOÌPICO E REPRESENTACIONAL DE FENOÌ‚MENOS FIÌSICOS E QUIÌMICOS
Palavras-chave:
TIC; Learning objects; Chemistry Teaching.Resumo
Understanding the occurrence and chemical processing mechanism enables understanding of many processes that occur in our daily lives, such as rusting of a piece of iron as a nail, sublimation of a moth ball or a sample of solid acid between many other examples. Coupled with the viewpoint of the formation of the citizen, we can still point out that, epistemologically, so that the subject knows the chemistry, understand this concept becomes a central need for the core of the chemical activity is to understand the chemical changes and take advantage of them. High school students have misconceptions regarding the concepts related to the theme "Chemical and Physical Transformations". In order to help overcome these difficulties built in partnership with the Pernambuco Institute for Development Support three Learning Objects. Initially, the chemistry teacher set up a series of comic and then presented to the computing team. We made some interviews with a small group of 10 students from the 1st year of high school from a public school of Paraiba CurimatauÌ by way of verification methodology, we will apply the tool outside the context of discussions on the contents. We questioned about these learners explanation for rusting of an iron nail and the sublimation of naphthalene to be more common materials. Since iodine is found in alcoholic solution and thus it becomes difficult to observe the sublimation, we decided not to question the change of state of this material. From these results we will expand the search to other classes and series. We are collecting data on conceptual profile of high school students in a state of ParaiÌba state school to decide how educational interventions with the use of these objects will be made. The final shape indicate that the simulation is feasible for application in rooms with use of computers, laptops or smartphones. We conclude that learning objects show potential to collaborate with overcoming epistemological obstacles in the study of chemical reactions and change of physical state because they have characteristics such as are used in everyday situations; show the constituents of matter; simulate electron transfer dynamics; show breakage and formation of chemical bonds; with the zoom feature establishes a clearer link between the macro and microscopic aspects; feature symbols, equations, and other elements of chemical language.
