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Direct linkKneubil, Fabiana Botelho; Loures, Marcus Vinicius Russo; Amado, William – Physics Education, 2015
In this paper we report on an activity aimed at building an electromagnetic wave. This was part of a class on the concept of mass offered to a group of 20 pre-service Brazilian physics teachers. The activity consisted of building a plane wave using an apparatus in which it is possible to fit some rods representing electric and magnetic fields into…
Descriptors: Science Instruction, Physics, Energy, Magnets
Download full textDias, Ana Lucia Braz – 2000
This paper describes student difficulties in first-year calculus classes and suggests some instructional strategies to address these difficulties. Participants in this study were 200 low socio-economic background freshmen majoring in business in Brazil. Results show that the main difficulties are related to lack of understanding of algebraic…
Descriptors: Algebra, Calculus, Concept Formation, Foreign Countries
