4. Intellectual developmentThis age the nervous system and brain are growing more and more. Brain weight of the baby will add more than 50 percent of brain weight adults. Babies will learn the environment around well, such as learning to use the senses motion expressions satisfied or not satisfied. Using a language or behavior for various meaningful and try to convey their own needs. Understand the meaning of a word more, such as, understand the meaning of the word, don"t don"t pray to find วิธีการแสดง let others know needs self. Such as speak dishing. When hungry, pointing to get or reach pulls the tablecloth toys on top of that table. Looking for things that I need. There is also the curiosity of things around.
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