System of education in The USA

High school (secondary school, senior school)
a school that provides children and youth with part or all of their secondary education

A year round schedule
9th Grade9th Grade – Freshman Year, 14-15
10th Grade10th Grade – Sophomore Year, 15-16
11th Grade11th Grade – Junior Year, 16-17
12th Grade12th Grade – Senior Year, 17-18

Basic curricular structure
mandatory subjects
additional subjects ("electives")

Mandatory subjects
Science (3 years)
Mathematics (4 years)
English (4 years)
Social sciences (3 years)
Physical education (2 years)

Additional subjects ("electives")
Computers
Athletics
Career and Technical Education
Performing Arts/Visual Arts,
Foreign languages

“Health" courses
anatomy
nutrition
first aid
sexuality
drug awareness
birth control