GetDownNesbitt
If anything, we should be focusing on the first 100 words and sight vocab because that would help an awful lot.
Where on earth do you get your information from? I've rarely seen so much misinformation as you have produced on this thread.
It's exact the wretched teaching of sight words, including high frequency words taught as sight words, that causes 20%+ to fail. Most remedial teachers spend their time picking up the pieces of those children who haven't intuited the alphabetic code from a diet of sight-words - these children can't do it - period. It doesn't matter whether they have an IQ in the 70s or one of 140+, whether they come from book rich homes, or not, around 20% need the skills that underpin our alphabetic code. As for context, guessing, learning from first letter of the word, syntax, prediction - it's all been tried for many years and it continues to fail this 20%.
We don't teach children how to play musical instruments in this scattergun way - we expect their teachers to be rigorously trained, to understand musical notation and not to bombard young children with multi-strategies : major and minor keys, rhythm, quavers, semi-quavers, dynamics, interpretation, expression and so on in the FIRST place. Of course music is not about learning musical notation and the way it relates to a specific instruction. However, without that knowledge most emergent players will founder.
So why do our teachers receive little or no instruction? Many, in recent years, have been given an eclectic mixed strategy, a splash of phonics in their one, two day training by the very advisors who were part of the problem in the first place.