Can you help me recall a parody I read spotlighting declining educational standards in the U.S.?

I saw this more than ten years ago, while I was working for an educational software company. It was making the rounds of educators and might have come from an education e-list.

As I recall, it was represented as a word problem of the sort that might appear in a textbook or on a test, meant to illustrate the changes in education over the decades.

Each period was identified with a year, followed by the wording of the problem, which for some reason I recall as involving squirrels. It began (maybe around 1900) with a highly complex problem involving challenging vocabulary and computational skills, gradually got simpler and simpler, and ended with a K-level picture-book line about the emotional state of two squirrels. Obviously it was meant as humor, but as humor with a message about declining educational standards.

Do you recognize this and know where to find a copy of it?