Proportionality

​Unit 1. Proportionality

María José González Lorenzo

What do you know about proportionality?

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She was the first mathematician woman.

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Pitagoras' wife

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She studied maths, physics and medicine​

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Great discoveries about golde ratio.​

​Theano

Multiple Choice

¿Qué significa en español Golden Ratio?

• Ratón dorado

• Número Aureo

• Ni idea

• Radio Dorado

Golden Ratio

Número Aureo​

​​Arts

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Nature and science

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The ratio of two numbers is the fraction of them. ​

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Ratios and proportions

Multiple Choice

Which number is x: $$\frac{10}{x}=\frac{5}{4}$$  

• 40

• 8

• 2

• 20

Multiple Choice

Discover the number x: $$\frac{x}{18}=\frac{2}{6}$$  

• 3

• 12

• 6

• 18

Multiple Choice

¿Cuál es la razón de proporción entre 10 y 5?

• 2

• 1/2

• 0.5

• 1