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édition 1964
This is truly an eye catching design that features scalloped "energy shells" to symbolize the various energy levels that electrons occupy which are carved directly into the 1 inch thick solid wood
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Retirez le mur et voyez si vous avez tous les deux réussi
Parts of a Turtle (Reptile) boit-plat édition 1964ETC Montessori 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 turtle 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
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