My grammar background as a student in the San Francisco Unified School District :
In my elementary schools (I transferred) they taught us nouns, adjectives, verbs, subject, predicate, and in the last year adverbs as well.
In the first year of middle school (6th grade), we had to do master all of the parts of speech, diagram sentences, know the difference between simple, compound, and complex sentences, as well as the rules of capitalization and punctuation and what, from a book called “Warner’s grammar”. We alternated, doing lots of literature one month, and a lot of grammar another month. This was with one of my two faviorite middle school teachers, who had decades of experience (she boasted that her social studies class was one of the few which covered Mesopotamia, Egypt, Ancient India, Ancient China, the Hebrews, Greece, and Rome thouroughly, which was true when I took it). Personally, I enjoyed the grammar sections, but I find algebra relaxing, so go figure.
In the 7th grade we covered grammar in class and did worksheets at home. They covered things such as common homonym mistakes (its vs. it’s, layed vs. laid, there vs. their vs. they’re, etc.), learned termonology such as homonyms, antonyms, and synonyms, covered verb agreement, irregular verbs, etc. However a lot of students, myself included, frequently did “what sounded right” instead of thinking about the grammar.
The biggest problem in this (7th grade) approach was that they taught it to us as if it was something we did not know as native speakers (a few of us were not native speakers, but we all spoke English fluently), rather than as an analysis of what we already knew. My father remembered that a classmate from his junior high days was always right in grammar, but when the teacher asked why that was right, he replied “Because it sounds good.” But one day, the teacher said, “No, Ralph, that does not sound good.” (it was something about who/whom).
In the 8th grade I had an easy teacher. All grammar we went throught had been covered in previous years.
In my freshman year at high school, our teacher focused on literature. Grammar only played a role in grading papers. Ditto in sophmore year. But in sophmore year I started getting very involved in foreign languages (independently: I’ve already ranted about the language departement in my high school) and saw grammar from a new perspective. Only then did I really appreciate the grammar experience I had in elementary and middle school, and see how important grammar was.
Now, in my junior year, I’m taking AP English Language and Composition, and we’re doing a lot of rhetoric work. The teacher assumes that our grammar is solid, though our textbook also has a comprehensive grammar section for those who need reference. However a lot of rhetoric and grammar are connected to each other like Siamese twins, and my good understanding of linguistics (syntax and vocabulary origin) gives me an edge over my peers.
Mind you, all of these school are on the west side. My middle school was very pure west-side. My elementary schools and high school are somewhat less west-side, as they are 1) magnet schools and 2) closer to the geographic center of the city, but at least 50% of the students live in the west side. For those who are not familiar with San Francisco, the west side neighborhoods are the stronghold of the middle class, especially the Asian (mostly Chinese/Cantonese, some Japanese and Vietnamese) community. Due to its size, the Asian community has a strong cultural identity, including the notion that their children need to have an excellent academic background to have a good life. The Asian parents lobby the school distict to death to make the schools their kids go to as academically rigorous as possible. Other students at west side schools (moi) reap the benefits alongside the Asian kids.
Also, California public schools have one of the highest rates of students who do not speak English as their first language, so maybe that encourages teachers to supplement the ESL courses with more grammar.
Conclusion : There is such a good thing as good grammar education in American public schools, but it depends on good teachers, as well as high pressures on the school to give a challenging academic curriculum.