Sorry you or your wife is a public school teacher in Oklahoma.
But Surliness/kidding aside, if the statistics said that the US spent more than any other country would you still have the same take? What if the US spent twice as much as any other country? Is your perspective that if we spent twice as much as any other country that the situation like the one in the OP would not have happened? If yes, I would unfortunately disagree as I think the problems we face are more underlying ones than ones that money can fix.
From the same article it has State spending and "Maryland schools spend $14,762 per pupil for a total of $13.2 billion annually." Which ranks 15th in the US, and I think would be 3rd or 4th in the world if compared to other countries.
Not that teachers shouldn't be paid more, but my point is that we have other issues with our educational system that money won't address.