As infants, children hear and start to learn sounds. Preschoolers begin to manipulate sounds into spoken words and, as they get older apply and match those sounds to written letters and written words. Young students must then learn vocabulary as well as appropriate structure for sentences, paragraphs and storytelling. Eventually, in elementary school, kids develop and strengthen reading fluency and comprehension skills. There are certain areas of the brain that are highly active as kids learn to read.