Giochi matematici
Chiara Manzoli
Created on January 16, 2024
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Transcript
GIOCHI MATEMATICI
Divertimento
Ragionamento
Internazionali
Individuali
Sfide
Fantasia
Logica
Nazionali
A squadre
Giochi
Semifinali 2020
Semifinali 2020
Semifinali 2020
Semifinali 2020
Semifinali 2020
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Semifinali 2020
Semifinali 2020
Semifinali 2020
Semifinali 2020
Semifinali 2020
Semifinali 2020
Semifinali 2020
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
Problemi RMT
Problemi RMT
Problemi RMT
La cordicella
La terrazza di Giuseppe
I due rettangoli
I cinque rettangoli
Da singolo a doppio
I quadrati di Alex
Il prato di zio Francesco
Questioni di età
Pappagallini colorati
La collana della regina
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
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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TangramPresentation
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Mei eu mollis albucius, ex nisl contentiones vix. Duo persius volutpat at, cu iuvaret epicuri mei. Duo posse pertinacia no, ex dolor contentiones mea. Nec omnium utamur dignissim ne. Mundi lucilius salutandi an sea, ne sea aeque iudico comprehensam. Popu lo delicatissimi ad pri.
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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.
- Generate experiences with your content.
- It’s got the Wow effect. Very Wow.
- Make sure your audience remembers the message.
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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.
- Generate experiences with your content.
- It’s got the Wow effect. Very Wow.
- Make sure your audience remembers the message.
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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.