Building your child's sight word vocabulary for common words at her developmental level is a good way to strengthen her reading foundational skills. This is one commonly used list of primer level words developed by E.W. Dolch in the 1930's and is still widely used by today's teachers. The list includes words that appear frequently in preschool and kindergarten level reading material. There are many ways to teach sight words to young children.
Primer Level Words
all, am, are, at, ate, be, black, brown, but, came, did, do, eat, four, get, good, has, he, into, like, must, new, no, now, on, our, out, please pretty, ran, ride, saw, say, she, so, son, that, there, they, this, too, under, want, was, well, went, what, white, who, will, with, yes