The most important elements of grammar have less to do with words than most people seem to think. Making correct word usage less important would allow grammar instruction to start working with the structure of our thinking and the development of our writing style.
The correct usage of words makes up a great deal of grammar instruction, but a word alone means next to nothing without the words immediately surrounding it. Most people think and speak in phrases and clauses, not words. Music works in much the same way in that a note suggests very little in nearly all cases, but a few played together create a tune and our minds begin to pay attention and hum the tune that musical phrase suggested.
When students become more adept at utilizing phrases and clauses, much of writing becomes significantly easier. The odd thing is that as grammar instruction progresses beyond identifying the basic parts of speech students are often encouraged to focus more and more on specialized issues with words rather than moving on to issues with phrases and clauses. They are essentially encouraged to become lexicographers rather than writing stylists.
This turns the focus away from the production of ideas and the communication of information and towards the generation of words. Many students who want to write well often get the mistaken idea that the use of unfamiliar vocabulary is the surest way to do so.
Many grammar books and blogs encourage this approach by focusing on the usage of words rather than the effects of style. They often explain the complex histories of words and their uses with an enviable precision. The Gramarphobia blog, for example, does an excellent job of responding to questions and explaining particular issues that students and professionals run into quite frequently. The blog is undeniably one of my favorites because it is well written and shows a sense humor about these nuances between words and their quirky histories. But I also wonder how useful it is for students who want to write well rather than use certain words correctly.
Even when it is done incredibly well and with a playful and disarming style, such an approach to grammar can be quite intimidating, even for someone with a degree or two in English. For someone with limited knowledge of grammar and no real interest in the minutiae of the English language, grammar instruction becomes a long procession of rules for when to use “it’s” rather than “its” or when to use “lie” rather than “lay.”
These distinctions in word usage are important to grammar instruction but only if they come up frequently enough in most people’s writing. Too often they do not. The writing problems that come up more often for students and professionals deal with issues of phrases and clauses and are more closely connected to issues of style. These issues are always rooted in grammar, but to become better writers, students need to understand how their thoughts are constructed and can be reconstructed with phrases and clauses, and to develop that knowledge means developing an understanding of how grammar and style work together.