"The limits of my language mean the limits of my world." Ludwig Wittgenstein
As per Dr. Susan Russak and Dr. Jason Wang, to read English successfully, children must learn to turn the words they see in a text into sounds, and make sense of these sounds. It is important for children to learn letter-sound relationships because English uses letters in the alphabet to represent sounds.
Phonics teaches this information to help children learn how to read. Children learn the sounds that each letter makes, and how a change in the order of letters changes a word’s meaning. For example, if we don’t pay attention to letter order, words such as ‘dog’ and ‘pat’ might be misread as ‘god’ and ‘tap’ respectively.