The view was expressed that language development can predict future intelligence in children, speaking earlier, higher intelligence levels. But there are exceptions, many high normal intelligence or the intelligence of children, language development may also be later. So, not only on the basis of talk sooner or later to see if high or low intelligence. Famous scientist Einstein 4 or does not speak, his parents even thought he was mute, speak until the age of 9 are not fluent.
Children understand a word much earlier than say the word, and when kids album, you say what the items in the picture, he can point out to, but not necessarily to say.
Under normal circumstances, sooner or later a very different for each child, some children eight months started to say a single word, less than a year old would be able to speak simple sentences. Also some children intellectual development is normal, but 3 or 4 years old can speak, and some later. Generally speaking, girls should speak sooner than boys.
