Ninth grade is typically the first year of high school in the United States, often referred to as freshman year. Students are usually around 14 to 15 years old and begin to take more advanced courses in subjects like math, science, English, and social studies. This year is crucial for building a strong academic foundation for future studies. In ninth grade, students also have opportunities to participate in various extracurricular activities, such as sports, music, and clubs. These activities help students develop social skills and explore their interests outside of the classroom, contributing to a well-rounded high school experience.