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Imprinting is a phenomenon that occurs in animals where a child develops a bond with their caretaker. With humans, it is said that it can happen within the first few hours of a baby's life, however it is not as time sensitive as it is with many other animals. It really depends on who the child spends the most time with and learns the most from.

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At around 4 months old infants start rolling over. This is very crucial for the development of the child because it builds their strength and introduces them to the idea of moving on their own. From here, the child will start to crawl and eventually walk

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Babies fully develop their vison around 6 months. They start to fully recognize faces, develop their depth perception, and develop perceptual development. Babies also develop their color vison around this age, and start being able to identify and differentiate between colors. If a child does not seem to have developed their vison around this age, it is very important to take them to an optometrist.

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Once a child reaches about 12 months, they will start to walk around. Every child is different and can start earlier or later, but 12 months is normal. This is a very important step in the development of a child, as it is a skill that they will need for the rest of their life.

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Erick Erickson believes that in this stage of life children develop trust in their caregivers. Caregivers provide reliability, care, and affection, leading to a development of trust. Without this, mistrust will be created.

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According to Jean Piaget's theory of cognitive development, children go through 4 stages as they develop, this first being the sensorimotor stage. During this stage, children learn about the world and their surroundings through their senses and their motor skills, which is what gives it the name sensorimotor.

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Babies start to say their first words at around 12 months, however depending on how much you speak to them they could speak earlier or later. At around 2 years old, children develop telegraphic speech. They communicate through incomplete sentences, leaving out grammar but still getting the message across. For instance, if the child wants a cup of juice, they might say "Want juice cup." Around this time they also start using labels for objects and commands.

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Erickson claims that in this stage of life children develop their own sense of independence and personal control over physical skills. Children start walking and playing on their own.

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Erickson says that ages 3-5 focus on exploration and play. Children start to control their own environment and develop a sense of purpose.

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At around 4 or 5 years old, children start talking with correct grammar. This is a very important skill for children to learn early on in life, because the older they are the harder it is to learn a language in full. The critical period hypothesis is a theory that there is a crucial time between birth and about twelve years old where you are fully able to learn your first language. If you don't learn your first language within this timeframe, you may never fully learn language skills. This is also why many parents teach their children multiple languages very young.

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The second stage of Piaget's theory is the preoperational stage. From ages 2-7 children believe that they are the center of their world and show egocentrism. They try to represent their world, however they are limited to their own point of view.

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The concrete operational stage is the third stage of Piaget's theory. Children start to develop logical thinking and they are able to think about real situations without seeing them in front of them.

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The final stage in Piaget's theory, the formal operational stage. This stage lasts up until adult hood and is very important. Children are finally able to think abstractly without any dependence.