DS has clicked with jolly phonics and the alternative sounds but we have found that he now needs to know more alternative spellings than jolly phonics covers (eg 'c' as a 's' sound, like ice) to be able to read his reading books. Can anyone recommend a system for doing this or a follow on program to jolly phonics, so that we know which variations on the sounds to point out to him rather than it just becoming 'look and say' rather than phonics.