I can share more. Recently, I noticed that a student spelled 'said' as 'sead'. I wrote it on the board and asked why a person might spell it incorrectly. The response was that the person was trying to sound out the letters as he/she spelled the word. This is no doubt true. I'm pleased that my students are starting to recognize that sounding out words in order to spell them (as a first step)is a mistake.
Instead, I asked for the word's relatives. The students named 'say'. I asked if any could think of a relative that might have been used in the Bible. One person thought of 'saith'. There was the proof we needed that the word 'said' needed to be spelled 'said'. Even though it is a small family of words, (say, said, saith) they all share the same meaning and have in common the 'sa' sequence of letters. Two of the three words have 'sai' letter sequence.
Here is a link to my blog. You can see the kinds of things I do when we study Orthography. In the blue bar below the title of my blog, you'll see a page of 'Word Investigating Classrooms' doing this same word work. Choose a link and check out what other classrooms are doing. It's exciting stuff!
I also recommend watching the video my students made called, "Can You Prove It?" It makes a case for 'tion' and 'sion' being named syllables and NOT suffixes. Since we made it, my students have no problem pronouncing those syllables in unfamiliar words.
http://mbsteven.edublogs.org/