In the United States, high school typically consists of four years of education, starting with grade 9 and ending with grade 12. The names of the high school grades are freshman (grade 9), sophomore (grade 10), junior (grade 11), and senior (grade 12) . High school students are generally around the age of 14 to 18. In addition to high school, there are other stages of education in the US, including elementary school (grades K/1-6), intermediate school (grades 3/4-5/6), and middle school/junior high school (grades 5/6/7-8/9) .