Que puis-je faire ?
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An envelope is an object which is used a lot in everyday life. We have all used envelopes to put letters or important documents into and as students we have often had to use them. However, as well as being very useful objects, envelopes are also interesting to analyse from a mathematical point of view. Their geometrical shape is of interest firstly to people who have to make them and secondly to maths students who can use them to review a few interesting concepts such as line symmetry and similarity. I hope you enjoy playing with these envelopes and discovering the maths contained "inside them"
KNOWLEDGE TYPE: procedural
CONEIXEMENT PREVI:Previous knowledge is not necessary
OBJECTIUS DIDÀCTICS: * Discover the shape used to make a rectangular envelope when it is unfolded. * Discover other possible types of rectangular envelopes. * Discover non-rectangular envelopes. * From the final dimensions of a finished envelope be able to illustrate the making of that envelope step by step and then actually make it. * Review the geometry involved in a rectangular envelope.
The use of the following contents is universal, free of charge and open, provided that it is for non-commercial educative use. The actions, products and utilities derived from its use may therefore not generate any profit. Moreover, a reference to the source is required.
Installation is not required
Install and enable the Java interpreter and Plug-in of the Applet Descartes on local
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Fecha publicación: 28.3.2015