stranezze di quadrilateri
DESCRIPTION
Gli alunni delle classi quinte della Scuola Primaria di Olmi esplorano i quadrilateri.TRANSCRIPT
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PENSA AD UN QUADRATO…
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COME PUOI COSTRUIRNE UNO CON AREA DOPPIA
SENZA TAGLIARE?
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SAI GIA’ FARE LA META’PIEGANDO
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Osserva la diagonale
del quadrato
piu’ piccolo
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“Ma è il lato del quadrato più grande!”
ENRICO:
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Allora costruiamo . . .
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sssh . . . Ci nasconde qualcosail nostro quadrilatero
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DISEGNA UN QUADRILATERO QUALSIASI.
UNISCI I PUNTIMEDI CONSECUTIVI
DI OGNI LATO
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“L’avresti mai detto?”
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“L’avresti mai detto?”
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“L’avresti mai detto?”
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“L’avresti mai detto?”
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… e se il disegno prende forma dal parallelogramma?
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Ed infinela giostra dei quadrati
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E perché non giocare ora con i numeri quadrati?
Ma questa è un’altra storia . . .