Defining AP classes

I see many people on this subreddit talk about AP classes, but what exactly are they? Can someone give me a clear definition and explain how they're different from regular high school classes?

AP (Advanced Placement) classes are college-level courses offered at the high school level. They are designed by College Board, the same organization responsible for the SAT exam, and are meant to provide a rigorous academic experience for high school students. AP classes are designed to challenge students and prepare them for college coursework by delving deeper into subjects than regular high school classes. Typically, AP courses cover more advanced material at a faster pace, and often require students to think critically, analyze complex problems, and develop strong writing and research skills.

One significant difference between AP classes and regular high school classes is the AP exam at the end of the academic year. These exams are standardized and students can receive a score between 1 (lowest) and 5 (highest). A student's performance on an AP exam can potentially earn them college credit or advanced standing at certain colleges or universities, depending on the school's policies.

Overall, AP classes are designed to challenge students by providing a higher level of academic rigor and represent the equivalent of a college-level course in a particular subject. They can be valuable for students looking to enhance their academic experiences, build important skills, and potentially earn college credit while still in high school.