Materials pedagogic for materialize the third dimension

摘要

This object is constituted by three plates 1a, 1b and 1c made of transparent rigid plastic, fitted into one another thus physically embodying a base 15 in the third dimension. This base 15 accommodates various accessories which are attached via a sucker system 7 equipped with a central orifice 9a trapping a ball 4 onto which the various accessories are fixed by means of a short stem 3b (ball and socket system). These accessories are: plane portions 2b and stems 3a representing straight lines and/or vectors when they are equipped with arrows 6a and tails 6b. A specially designed set square makes it possible to place the accessories at a given angle. IMAGE