Selena has a dog at home, so she knows about dogs. She is walking down the street and sees an animal walking toward her. The animal has four legs, fur, and a tail. Selena knows that these are characteristics of dogs. But the animal coming toward her is meowing, not barking. Selena's mom tells her that the animal is a cat. Now when Selena sees an animal with four legs, a tail, and fur, she will conclude it is a dog if it barks and a cat if it meows, illustrating Piaget's concept of:

did you study? i cant if you didnt study

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muslims have taken his goods and products to different parts of asia an indonesia. sometimes just traveled and trade, but in other occasions, stayed in the place and made a living.

trade was the key for muslims economies to prosper. their commerce routes reached far places like malaysia and java in the 11th century.

another important factor for prosperity was that muslim states served as the middle point for european traders.

they used to travel by land but sailing the seas -the indian ocean- really increase the exportation of products.