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Escolananet: o uso de ambiente virtual de aprendizagem (AVA) como ferramenta de apoio e estímulo à aprendizagem de física no ensino médio
(Universidade Federal de São Carlos, 2010-07-08) Onofre, Dari Campolina de; Studart Filho, Nelson; https://lattes.cnpq.br/0451310772113076; https://lattes.cnpq.br/4932423755675251
This work consists in building, implementing and evaluating a Virtual learning Environment (VLE) as a tool to support the teaching of physics with traditional methodology, in high school, using the Moodle softares package. The environment has been structured to have the student making use of VLE during the whole school year, with the contents distributed in cycles for the three series as follows: Kinematics, Dynamics, Hydrostatics, Thermophysics, Electrostatics and Electrodynamics. The cycles have a basic structure formed by a study guides , a summary text with exercises to assimilation and deepening of contents, virtual labs, simulators and evaluation questionnaires . The use of VLE proved to be an organizer and facillitator of the study and mainly a motivation tool for students that had increased the time of study and interaction with the teacher. The activities were developed in bimodal form, where first the instructor gives a lecture and after the students perform activities at home, which allows the instructor resuming and redirecting the contents according to the performance of the students in the VLE. The increase of motivation for better learning, verified through the completion of the tasks proposed, was confirmed by results obtained in some tests answered by volunteer students.The VLE ia available at www.escolananet.com and and hosted at the site of the Graduate Program in Teaching of Exact Sciences of UFSCar.(http://www.ppgece.ufscar.br/.)
Teoria de Littlewood-Paley e o problema de Cauchy para a equação da onda cúbica
(Universidade Federal de São Carlos, 2010-07-08) Pinto, Aldo Vieira; Santos Filho, José Ruidival Soares dos; https://lattes.cnpq.br/6112529384454347; https://lattes.cnpq.br/9018128582398550
In this work, we study the result of well-posedness for the cubic wave equation u + u3 = 0 in R3, due to H. Bahouri e J.-Y. Chemin, where the Cauchy data is in the Homogeneous Sobolev space ̇H3/4(R3) × ̇H−1/4(R3). The proof relies on nonlinear in- terpolation method, the Bony's decomposition and the logarithmic Strichartz estimates, as formulated in the Littlewood-Paley Theory