In a message of , Matt Smith (1:3644/6) writes:
 MS>    Other than math, the coursework is not _sequential_ in nature.
 MS>    ES social studies can be missed entirely by a kid in 3rd grade, and 
 MS>he'll do just fine with it in 4th grade with a good teacher if he knows 
 MS>how to read.
 MS>
That's the point.  If a kid falls 2 or 3 years behind in reading, he is in 
big  trouble and a candidate for dropping out of school as soon as he can.
 
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