O conteúdo introdutório de algoritmos e programação é difícil de ser trabalhado e apresenta vários problemas que levam os alunos a abandonar a disciplina. Entre os vários motivos, está a falta de motivação dos alunos e a dificuldade dos mesmos em desenvolver o raciocínio lógico necessário para a construção dos algoritmos. Este artigo propõe o uso de estratégias pedagógicas utilizando jogos computacionais para amenizar os problemas citados, mostrando que usar recursos de informática na própriaárea da educação em informática pode ser interessante.
During the twentieth century, the agricultural economy benefited tremendously from new developments in chemical pesticides. This progress, however, has resulted in unintended consequences to human health and the environment. This article presents the results of a study carried out on land reform settlement located on the North Fluminense region. Data was obtained by surveying one hundred land reform settlers through a random sample questionnaire. Variables studied include household demography and education, types of pesticides, targeted crops, levels of training for pesticides handling, disposal of empty containers and use of safety equipments. Our results show that about half of the households were using pesticides to eradicate weeds and different types of agricultural pests on eleven crops. Data also showed a dominance of products with moderate toxicity for human health and high toxicity for the environment. The risk for increased contamination associated to pesticides utilization was greatly enhanced by a general lack of understanding regarding health and environmental risks. Most settlers declared having previously received no formal training for the handling and disposing of products being used in their lots. We also found that most settlers were littering their lots with empty containers and had unrestricted access to pesticides retailers. Finally, our results show the need for the education on the health and environmental risks involved in misguided utilization of pesticides, and for the mapping of aquatic systems environmental contamination associated to pesticides utilization.
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