Teaching phonics helps students identify the underlying sounds as they read and spell words, which helps them understand how words are formed and constructed. With knowledge of phonics, confidence in reading improves in kids because they are better able to decode unfamiliar words and recognize patterns in language.
Phonics also provides a good base for understanding other concepts such as:
Vocabulary: Being able to sound out words helps children recognize new words they encounter, which expands their knowledge of the language.
Comprehension: Knowing phonics allows a child to read faster and focus more on what the text is saying instead of trying to figure out what each word says.
Common spelling rules: The knowledge of phonics helps students to apply the spelling rules like ‘i before e except after c’ correctly.
Grammar: Knowing how to blend sounds helps children understand how to construct sentences and paragraphs.