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de ses contours avec un trait fin ou épais
Le couvercle de la boite représente (a+b)2 car c'est dans le plan et non en volume comme le cube
Les prismes sont en hêtre laqué de couleur foncée
4 wooden puzzle frames ( 20 x 20 cm)
les eaux sont bleues
Parts of a Spider (Arachnid) educo-ext de ses contours avec unETC pioneered the use and combination of black and white photography with full color pictures to point out individual parts of a whole. Similar to our elementary "parts of" cards, here too we have implemented the use of this technique that has now become the accepted standard. Each part of the spider is isolated in full color while the rest of the parts are faded in gray. A full photo is included as a key reference so that students and teachers have
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