Unfortunately, the best answer to your question is going to be boring: it's difficult to say. Due to the 10th Amendment of the Constitution, America does not have a national education system, which means each state sets its own expectations for the content teachers teach.

Meanwhile, states generally fall into two groups with regard to content. A little less than half are known as "textbook adoption" states - this means they adopt textbooks for various grade levels and content area and schools and teachers are obliged to follow those textbooks. The other half are "standards-adopting states." They set standards and expect schools and teachers to teach those standards.

That said, teachers have a fair amount of academic liberty with regards to content (it varies dramatically between states, even between districts but that's another post) and it's very likely the content you're asking about has been taught in an American high school, possibly in a sociology or American history course. However, teaching is an overwhelmingly White profession, with most decisions regarding content and textbooks made by White adults who aren't especially adept at or interested in explicitly addressing race in America.

Which in effect means the answer to your question is probably, but it's impossible to say for sure without combing individual teacher's curriculum and pedagogy.

Can you say a little more about your question? That is, I'm not sure if you're asking if the curriculum included the history around the one drop rule or something else? Thanks!