The fast track learners move on.
After a little more teaching so do the slower learners, but you will know if each child has an auditory deficit or a visual deficit or both.
So teaching can be targeted for this group now.
Only those digraphs which are more difficult to sound are taught.
Then the learning is tested.
Children need to be taught how to listen to a word.
Listening for the beginning sound is easier than listening for the ending sound.
The hooks tap, hen, pin, dog and run are used to teach;
a book of words for each vowel sound.
The words chosen are high count writing words.
Identify the vowel sound, then the beginning sound, then the ending sound.
See and hear and put together. The skill for reading.