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^"permissions":^"read":ӶӺ,"update":ӶӺ,"delete":ӶӺ,"admin":ӶӺ°,"user":^"id":6,"name":"Sarah Oberbichler"°,"id":"Nzqul7ib7d","ranges":Ӷ^"start":"/divӶ3Ӻ/divӶ4Ӻ/divӶ1Ӻ/pӶ30Ӻ","startOffset":0,"end":"/divӶ3Ӻ/divӶ4Ӻ/divӶ1Ӻ/pӶ32Ӻ","endOffset":1081°Ӻ,"quote":"Experientially – i.e. reconstructing the child’s experience not from an observer’s perspective but such as it might be from the child’s own point of view – there are obvious differences between a situation with one item and situations with two or three items. There is no problem about picking up one block; either hand can do it. When there are two, one hand may pick them up one after the other, but both hands are needed if the blocks are to be picked up simultaneously. If there are three, there is no way to pick them up simultaneously, but they can, of course, be picked up in succession. Although such considerations may seem trivial to an adult manipulator, they provide, in the case of the child, some important insights into what I call “protonumerical” processes and notions. \n1.\tThe simultaneous use of two hands in the displacement of two objects confers a very palpable difference to the visual and tactual experience of spatial configurations of one and two items rather than three or more. \n2.\tThe very fact that the same result of displacing two objects can be achieved by using one hand twice in temporal succession or by using both hands simultaneously, confers a very special status to the visual and tactual experience of two items. Moving both hands at the same time can be seen (whenever it is reflected on) as both a “single” and a “double” act, in that the motor component accentuates the singleness whereas its result accentuates the duality. \nThough this experience may and does take place long before the infant has acquired any number words, let alone notions of numerosity, it is an experience that continually recurs during human life, simply because we have two hands and we sometimes use them separately and sometimes together. Hence there is in every (normal) child’s experience a host of situations from which to abstract the notion that configurations called “two” can be constructed or decomposed by taking “one” and then another “one”. As an empirical abstraction from sensorimotor experience, that notion constitutes solid protonumerical knowledge.","highlights":Ӷ^"jQuery321019266462329114922":^°°,^"jQuery321019266462329114922":^°°,^"jQuery321019266462329114922":^°°Ӻ,"text":"","order":"mw-content-text","category":"Argumentation2","data_creacio":1595603829429°
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