giocando a fare matematica
DESCRIPTION
Laboratorio didattico matematico Classi 3^ C e 4^ C del 3° CIRCOLO DIDATTICO “San Giovanni Bosco” Piazza Sacro Cuore n°16TRANSCRIPT
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Classi 3^ C e 4^ C
del 3° CIRCOLO DIDATTICO
“San Giovanni Bosco”
Piazza Sacro Cuore n°16
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1° Argomento
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2° Argomento
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3° e 4° Argomento
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5° e 6° Argomento
Costruzione di figure equiestese
Cartellone di sintesi
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7° Argomento
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In un pollaio ci sono 25 animali con le
piume, 18 animali bianchi, 6 animali
con le piume bianche.
• Quanti animali in tutto?
• Quanti bianchi senza piume?
• Quanti bianchi con le piume?
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BIANCHICON LE PIUME
U: Gli animali del pollaio
Legenda:
Animali con le piume
Animali bianchi
Animali con le piume bianche
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Gli animali in tutto sono 37
I bianchi senza piume sono 12
I bianchi con le piume sono 19
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Il problema è stato risolto da un alunno della classe con il
seguente ragionamento:
Per risolvere la situazione problematica, ho pensato di costruire
un insieme universo con il Diagramma di Venn, con la
congiunzione.
Ho inserito nella congiunzione i 6 animali che hanno le piume e
sono bianchi; poi ho considerato l’insieme degli animali con le
piume e ho inserito i restanti 19 nell’insieme, eseguendo una
sottrazione (25-6)=19. Ho eseguito lo stesso procedimento con
l’insieme degli animali bianchi (18-6)=12.
Per sapere quanti animali ho in tutto ho eseguito, infine,
un’addizione (19+12+6)=37.
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25 - 6 = 19
Animali bianchi Animali
bianchi con le
piume
Animali non
bianchi con le
piume
19 + 12 + 6 = 37
Animali
con le
piume
Animali
bianchi
Animali
bianchi
con le
piume
Animali
in tutto
18 - 6 = 12
Animali bianchi Animali
bianchi con le
piume
Animali non
bianchi senza le
piume
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8° e 9° Argomento
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10° Argomento
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11° Argomento
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12° Argomento
Lavori con diversi universi
Attività di astrazione con i numeri e con gli
universi linguistici
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13° Argomento
Scoperta del ritmo e della “regola” che sta all’interno
delle permutazioni
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14° Argomento
Confrontare la frazione della probabilità con quella
della frequenza attraverso l’estrazione di: palline,
pennarelli, numeri della tombola e lanci di dadi.
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Il mio nome è Daniele Vigliani
Sono Alessia Sassu
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Sono Gioia Toro
Il mio nome è Roberto Porru
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Il mio nome è Manuel Pani
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Cannas Aghedu Laura
Petri Gabriella