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Direct linkAccascina, Giuseppe; Rogora, Enrico – International Journal for Technology in Mathematics Education, 2006
Cabri3D is a potentially very useful software for learning and teaching 3D geometry. The dynamic nature of the digital diagrams produced with it provides a useful aid for helping students to better develop concept images of geometric concepts. However, since any Cabri3D diagram represents three-dimensional objects on the two dimensional screen of…
Descriptors: Visual Aids, Computers, Secondary School Teachers, Geometric Concepts
Peer reviewedHerz-Fischler, Roger – Mathematics Magazine, 1990
Durer's method for drawing an ellipse is used to explain why some people think an ellipse is egg shaped and to show how this method can be used to derive the Cartesian form of the ellipse. Historical background and suggestions for further reading are included. (KR)
Descriptors: College Mathematics, Geometric Concepts, Geometric Constructions, Geometry
