Theorists

Piaget

Stages in cognitive development:
Birth to 2 years = object permanence
2 to 7 years = pre- operational stage
7 to 11 years = concrete operational stage
11 above = formal operational stage
At each stage a child gradually improves their ability to distinguish technical factors and debate possibilities and consequences. They become able to explain in a thoughtful fashion changes around them.

Chomsky

Children are born with an innate understanding of language use meaning that they are biologically pre-wired to easily learn universal grammar and language. They already have the ability to understand the worlds languages fixed principles such as verbs,nouns and sentence structures such as interrogatives.

Vygotsky

The zone of proximal development.
Children begin with the assisted stage where they learn language with the help of an educated adult. The assistance over time becomes more minimal and the child begins to learn independently with the confidence to endeavour to learn more.

BF Skinner

Operant conditioning.
This is where adults use schedules of reinforcement such as congratulating their child when they are successful in spelling a word correctly, while giving negative reinforcement for a misspelling.

Bruner

Children pursue the ability to learn language with the aim of getting what they want and being able to ask for such things as food or hugs.

Personal theory

I agree that all the theorists are correct to a large extent although that they are all also complimented by one another. They all, combined together, factor into the whole portrait of how a child learns how to read, write and speak. Some of these theories can however be criticised such as Piaget, in the case that the stages could vary depending on various children's brain development paces. I agree with BF Skinners Operant conditioning theory over the others because I believe that children strive to impress and please their parents and to receive as much adoration for what they do as they possibly can.