Mat fracciones(1)
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Transcript of Mat fracciones(1)
![Page 1: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/1.jpg)
Frações
![Page 2: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/2.jpg)
Desenha un retângulo e divide-o em duas
partes iguais.
![Page 3: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/3.jpg)
A parte vermelha do retângulo representa uma fração…1/2 (um meio)
![Page 4: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/4.jpg)
Agora, desenha un círculo e divide-o em duas partes
iguais...
![Page 5: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/5.jpg)
A parte vermelha
representa uma fração…1/2 (um meio)
![Page 6: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/6.jpg)
Muito bem! Agora desenha outro retângulo e divide-o em três partes
iguais...
![Page 7: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/7.jpg)
A parte vermelha do retângulo representa outra fração… 1/3 (um terço)
![Page 8: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/8.jpg)
Muito bem!!! Agora desenha um círculo e divide-o em 4 partes
iguais...
![Page 9: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/9.jpg)
A parte vermelha do círculo representa uma fração…
1/4 (um quarto)
![Page 10: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/10.jpg)
Já sabes o que é uma fração!!! Recorda que numa fração, o número de baixo indica
o número total de partes iguais em que está dividido um objeto...
![Page 11: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/11.jpg)
... e o número de cima indica o número de partes
“selecionadas” desse objeto...
![Page 12: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/12.jpg)
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Podes representar diferentes frações com a mesma figura …
Por exemplo, observa a figura seguinte:
![Page 14: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/14.jpg)
Agora vê como este retângulo pode ser usado para mostrar
diferentes frações….
![Page 15: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/15.jpg)
Se “selecionamos” 1 parte deste retângulo, qual é a fração?
![Page 16: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/16.jpg)
1
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4
Se “selecionamos” 1 parte deste retângulo, a fração é …
![Page 17: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/17.jpg)
Se “selecionamos” 2 partes deste retângulo, qual é a fração?
![Page 18: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/18.jpg)
2
-------
4
Se “selecionamos” 2 partes deste retângulo, a fração é …
![Page 19: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/19.jpg)
Se “selecionamos” 3 partes deste retângulo, qual é a fração?
![Page 20: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/20.jpg)
3
-------
4
Se “selecionamos” 3 partes deste retângulo, a fração é …
![Page 21: Mat fracciones(1)](https://reader036.fdocumentos.tips/reader036/viewer/2022062308/5599e0341a28ab4e318b465a/html5/thumbnails/21.jpg)
AGORA, PRATICA.
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1
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4
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3
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4
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1
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5
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3
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5
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3
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4
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2
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4
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3
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8
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3
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4
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2
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5
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6
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8
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1
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8
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FIM