catkind you seem to be focusing on the schwa in the - as I have said the schwa is the most common vowel sound in English. It can be spelt in a number of ways
a in about, salad and Coca cola
e in the and open
er in after and Severn
o in bacon
u in genius
ou in obvious
ar in sugar
or in actor
our in colour
ure in picture
ur in Arthur
ai in certain
yr in martyr
ae in Michael
these are a few examples and of course there many many other words
the important thing is your child can actually hear the sounds
Letters & Sounds is very optimistic in believing that a child will acquire a sight word from a few repetitions over the course of a lesson.
Stuart, Masterson and Dixon carried out an experiment to see how easy it was for five-year-old beginning readers to store new, whole words in memory from repeated shared reading of the same look-say texts. It turned out to be much harder than they had expected: They tried to teach the children 16 new words, which were printed in red to make them identifiable as the words to be learned. There was one of the red words on each page. After the children had seen and read each red word 36 times, no child was able to read all 16 of them, and the average number of words read correctly was five.
In a later experiment they concluded that
Children who can apply phonic knowledge to read unfamiliar words will build a store of ‘sight vocabulary’ more quickly.
•This is because left-to-right decoding of each grapheme forces attention sequentially on to each letter of the unfamiliar word.
•This sequential attention to each grapheme increases the likelihood that the child will form an accurate memory of the spelling pattern.
They cite further studies
Share (1999)
Cunningham, Perry, Stanovich & Share (2002).
Bowey & Muller (2005)
Nation, Angell & Castles (2006)