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Download full textTeófilo de Sousa, Renata; Alves, Francisco Régis Vieira; Ferreira de Azevedo, Italândia – LUMAT: International Journal on Math, Science and Technology Education, 2021
This work presents the result of the application of a didactic sequence designed to understand the concept of the Cavalieri's Principle, supported by the GeoGebra application in its version for mobile phones -- 3D Calculator. For this study, the Theory of Categories of Intuitive Reasoning, by Efraim Fischbein, was used as a conceptual basis. The…
Descriptors: Foreign Countries, Mathematics Instruction, Electronic Learning, Handheld Devices
Direct linkVladimir Miškovic – Australian Mathematics Education Journal, 2023
The purpose of this article is to present and discuss two recommended sequences of learning the areas of polygons, starting from the area of a rectangle. Exploring the algebraic derivations of the two sequences reveals that both are valid teaching progressions for introducing the area formula for various polygons. Further, it is suggested that…
Descriptors: Algebra, Geometric Concepts, Plane Geometry, Mathematical Formulas
