When you think about a sentence, you usually think about words — not lines. But sentence diagramming brings geometry into grammar. If you weren't taught to diagram a sentence, this might sound a ...

I read an article last month about the lost art of diagramming sentences, a once-required skill that many American children had to master if they wanted to pass English back in the mid-20th ...

For a long time, sentence diagramming flourished throughout the American school system, and, despite being condemned as a useless waste of time in the 1970s, it still persists in many schools ...

Once a popular way to teach grammar, the practice of diagramming sentences has fallen out of favor.

If you weren't taught to diagram a sentence, this might sound a little zany. But the practice has a long -- and controversial -- history in U.S. schools.