Phonics instruction must be informed by our ongoing observation and assessment of children’s phonics knowledge and word-reading skills. We should respond when we notice that a child is confused, is insecure with a particular skill, or has had a major breakthrough. If we are not responsive to our students, some students are likely to be left behind in their word-reading development.
A common question with any instructional program is whether "one size fits all." Teachers may be able to use a particular program in the classroom but may find that it suits some students better than others. At all grade levels, but particularly in kindergarten and the early grades, children are known to vary greatly in the skills they bring to school. Some children will already know letter-sound correspondences, and some will even be able to decode words, while others will have little or no letter knowledge.