El signe ≡

El signe = no té el mateix significat a les equacions que a les identitats. En una equació, la igualtat només es compleix per a alguns valors de les incògnites, mentre que en una identitat es…

Tria. Nombre de solucions 1

Sense resoldre'ls, quantes solucions tenen els sistemes següents?    →   Té solucions.    →   Té solucions.

Recta perpendicular

Una recta és perpendicular a un pla si forma un angle de 90º amb qualsevol recta del pla.

Machthe pictures to the sentences

Machthe pictures to the sentences: He is using the force of the wind.  →  The atmosphere is a layer of air that surrounds the Earth.  →  They produce oxygen.  →  It can fly because when air…

What types of weather can you see in the pictures?

What types of weather can you see in the pictures?

Let's learn how to... - Our distant past

Find out about the history of our region What do we need? Books and tourist information about your region. The Internet. A camera. What do we do? Make a list of the historical monuments and buildings in…

Look at the map and find the geographical features that these sentences...

Look at the map and find the geographical features that these sentences describe: A river that begins in the Cordilleras Béticas and flows into the Atlantic Ocean. → A mountain range that extends…

Third term

Unit 12

Life was very different when my great-granddad was ten, No TV or Internet or mobile phones back then. He had no bath or shower, so to wash his face and hair, He had to get the water from the fountain in…

Ordena aquestes frases de la lectura inicial:

Ordena aquestes frases de la lectura inicial: Si quasi no has dinat… Veu aquestes ombres? Aviat sabrem què dimonis amaga. La farà, la paraula? No he menjat res, fora de casa. M'atreviria a…