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GIOCHI MATEMATICI

Divertimento

Ragionamento

Internazionali

Individuali

Sfide

Fantasia

Logica

Nazionali

A squadre

Giochi

Semifinali 2020

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Semifinali 2019

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1 + 2 + 3+ .... + n ??
Qual è il risultato di ...

Somma dei primi n numeri naturali

Ad esempio:Se n = 5, 1 + 2 + 3 + 4 + 5 = ??
1 + 2 + 3+ .... + n ??
Qual è il risultato di ...

Somma dei primi n numeri naturali

Facendo i calcoli: 1 + 2 + 3 + 4 + 5 = 15

Somma dei primi n numeri naturali

Facendo i calcoli: 1 + 2 + 3 + 4 + 5 = 15
Ma se n fosse molto più grande?

Somma dei primi n numeri naturali

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
...in modo decrescente:
...in modo crescente:
Prendiamo n = 15, scriviamo tutti i numeri...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Somma dei primi n numeri naturali

15 14 13 12 11 10 9 8 .... 1
1 2 3 4 5 6 7 8 .... 15

Somma dei primi n numeri naturali

in tutto 15 volte
16 16 16 16 16 16 16 16 16
+ + + + + + + + .... +
15 14 13 12 11 10 9 8 .... 1
1 2 3 4 5 6 7 8 .... 15

Somma dei primi n numeri naturali

Quindi:

Somma dei primi n numeri naturali

In generale:

Somma dei primi n numeri naturali

Quadrato magico

La scelta dell'asino

Sempre la metà

Una spirale particolare

Triangoli di prodotti

I funghi

E' l'ora !

Delle uova troppo leggere

Labirinto

La collezione di Leo

Problemi RMT

Il tangram è un puzzle molto comune, originario della Cina antica. E' un quadrato grande costituito da sette pezzi, tra cui un quadrato piccolo, che permette di realizzare numero figure.

Il tangram

Spiegate come avete trovato la vostra risposta e descrivete in dettaglio la procedura che avete seguito.

Un falegname costruisce Tangram in legno.Un giorno, un cliente gli ordina un Tangram che abbia il quadrato piccolo di lato 6 cm.Quanto misurerà il lato del Tangram quando il falegname avrà finito di costruirlo?

Il tangram del falegname

Sul muro della scuola

Sul muro della scuola

La cordicella

Giuseppe si chiede se l'area delle parti bianche sarà uguale a quella delle parti grigie.Calcolate l'area totale delle parti bianche e quella delle parti grigie, riportando il dettaglio del vostro procedimento e dei vostri calcoli.

Giuseppe ha una terrazza quadrata di 10 metri di lato. Vuole dipingere di bianco e di grigio il pavimento. Fa uno schizzo a mano libera per il suo progetto tracciando un quadrato che rapprsenta la terrazza, poi, all'interno quattro segmenti di retta che vanno da ciascuno dei quattro vertici al punto medio di un lato opposto. Colora in grigio quattro parti e lascia le altre cinque bianche.

La terrazza di Giuseppe

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Data

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TangramPresentation

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With Genially templates, you can include visual resources to wow your audience. You can also highlight a particular sentence or piece of information so that it sticks in your audience’s minds, or even embed external content to surprise them: Whatever you like!Do you need more reasons to create dynamic content? No problem! 90% of the information we assimilate is received through sight and, what’s more, we retain 42% more information when the content moves.

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With Genially templates, you can include visual resources to wow your audience. You can also highlight a particular sentence or piece of information so that it sticks in your audience’s minds, or even embed external content to surprise them: Whatever you like!Do you need more reasons to create dynamic content? No problem! 90% of the information we assimilate is received through sight and, what’s more, we retain 42% more information when the content moves.

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Let the communication flow!

With Genially templates, you can include visual resources to wow your audience. You can also highlight a particular sentence or piece of information so that it sticks in your audience’s minds, or even embed external content to surprise them: Whatever you like!Do you need more reasons to create dynamic content? No problem! 90% of the information we assimilate is received through sight and, what’s more, we retain 42% more information when the content moves.

  • Generate experiences with your content.
  • It’s got the Wow effect. Very Wow.
  • Make sure your audience remembers the message.