Sight words are rule breakers. Their letters do not make the expected sound. They may look like syllable but the student needs to understand that because they are not part of a bigger word, they are sight words. Ex: of says “uv” not “of” as in the word office
Says – “sez”
Is - “iz”
The - “du”
Come, some , have, was, done, does, been, please, beautiful, people, because, friend.
Other words may appear to be sight words: nice, age, her, are, moon. They are in fact not sight words but have a rule to explain why they make their sounds.