I moved a lot as a child and they either had just studied it the year before or were going to study it the year after. Arrived at new school number 10 or so as a high school freshman unable to diagram a sentence -- my teacher couldn't believe it. I think diagraming sentences has gone the way of dinosaurs. My knowlege of grammar is more intuitive than concrete.
Larry --- I'll have any comments on the manual to you by the end of the day.