Geometric Thought
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Instrumentos virtuais de desenho e a argumentação em geometria
This dissertation presents a proposal to work, at school, the deductive reasoning in geometry. The proposal makes use of digital material consisting of virtual drawing tools that perform geometric transformations of translation, reflection, rotation and enlargement. Making use of digital material, it was developed a didactic sequence consists of three stages
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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2. Professores de matemática na educação de jovens e adultos: o pensamento geométrico no centro das atenções / Teachers of mathematics in the education of youngsters and adults: the geometric thought in the center of attentions
The current qualitative research aims at answering the following question: what are the tensions and reactions of the mathematics teachers who dwell in the Education of Youngsters and Adults, in light of situations of teaching-learning geometry from the knowledge built by the student along his life/work? Therefore, we approached the teachers who work with Ed
Publicado em: 2010
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3. Uma seqüência de ensino para o estudo de progressões geométricas via fractais
The objective of this research is to investigate the learning of Geometric Progressions by fractals and their influences on the construction of the knowledge of this subject. Starting from this objective our research questions emerge: How the use of the fractals motivate can be in the perception of the solemnity-similarity? How can the solemnity-similarity c
Publicado em: 2007
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4. Concepção de uma seqüência de ensino para o estudo da semelhança: do empírico ao dedutivo
The aim of this research is to investigate how the concept of similar figures can be presented in a significant and motivate way to the students attending the first grade of Brazilian high school system, so that the proof can be an integrant part of this process. We tried to answer the research questions: How is the transition from concrete geometry to space
Publicado em: 2006
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5. Uma seqüência de ensino para a construção de uma tabela trigonométrica
O objetivo deste estudo é construir uma tabela trigonométrica, com base em levantamentos históricos dos trabalhos de Ptolomeu e outros matemáticos da Grécia Antiga, para investigar a apropriação do significado dos conceitos das razões trigonométricas: seno, cosseno e tangente, no triângulo retângulo, por estudantes do 1o ano do Ensino Médio. Proc
Publicado em: 2005
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6. AJUSTAMENTO E CONTROLES DE QUALIDADE DAS LINHAS POLIGONAIS / LEAST-SQUARES ADJUSTMENT METHOD AND QUALITY CONTROLS OF TRAVERSES
Brazil is a country of great dimension that still holds unexplored areas of little population nowadays. Actually these lands are state-owned, but they have been appropriated as a private property, especially in the Amazon basin. The need for a governmental more effective territorial management was formally implemented through the establishment of a geodetic
Publicado em: 2005
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7. Estudo teorico da fluorescencia dupla em 9-antril oligotiofenos e da adsorção de moleculas organicas em uma superficie de grafite
This thesis was devoted to the application of methods of Quantum Chemistry and Molecular Mechanics to study two experimentally observed phenomena: the dual fluorescence of 9-anthryl-oligothiophenes and the adsorption of organic molecules in a graphite surface. The investigation of the dual fluorescence was carried out employing a combination of the-oretical
Publicado em: 2003
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8. Solução de problemas : habilidades matematicas, flexibilidade de pensamento e criatividade
This current research had a major main to investigate the existing relations between the thought flexibility and the creativity, shown during the procedures of problems solution, having as subjects 307 6 , 7 and 8" grades students of a municipal public school in the region of Campinas, Sao Paulo. These subjects answered a questionnaire for their characteriza
Publicado em: 2001
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9. Constitutive laws for strong geometric non-linearity
This paper is divided into two different parts. The first one provides a brief introduction to the fractal geometry with some simple illustrations in fluid mechanics. We thought it would be helpful to introduce the reader into this relatively new approach to mechanics that has not been sufficiently explored by engineers yet. Although in fluid mechanics, main
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000
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10. A Modified Enzyme-Linked Immunosorbent Assay for Measurement of Antibody Responses to Meningococcal C Polysaccharide That Correlate with Bactericidal Responses
The standardized enzyme-linked immunosorbent assay (ELISA) for measurement of serum immunoglobulin G (IgG) antibody responses to meningococcal C polysaccharide has been modified to employ assay conditions that ensure specificity and favor detection primarily of high-avidity antibodies. The modified and standard assays were used to measure IgG antibody concen
American Society for Microbiology.
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11. Effect of inhaled frusemide on responses of airways to bradykinin and adenosine 5'-monophosphate in asthma.
BACKGROUND--Inhaled frusemide exerts a protective effect against bronchoconstriction induced by several indirect stimuli in asthma. This effect could be caused by interference with neural pathways. The effect of inhaled frusemide on bronchoconstriction induced by inhaled bradykinin, which is thought to cause bronchoconstriction via neural mechanisms, was stu
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12. Incidence of bacteremia in stressed and unstressed populations of the blue crab, Callinectes sapidus.
The incidence of bacteremia in the blue crab, Callinectes sapidus, is reported to be in excess of 80%. Because these results have been controversial, a field study was initiated to determine the effect of commercial capture and handling stresses on the incidence and levels of infection in blue crabs. The majority (75%) of "unstressed" crabs which were captur