High schools are educational institutions that typically serve students in grades 9 through 12. They provide a variety of subjects, including math, science, history, and literature, helping students prepare for college or the workforce. High schools also offer extracurricular activities like sports, music, and clubs, allowing students to explore their interests and develop social skills. In high school, students often take standardized tests, such as the SAT or ACT, to assess their readiness for higher education. Teachers and counselors play a crucial role in guiding students through their academic journey, helping them make important decisions about their future, including college applications and career paths.