It is an area of knowledge that is studied in school.
a subject
It is an organization of people interested in a particular activity or subject who usually meet on a regular basis.
club
It is someone who trains a person or team of people in a particular sport.
coach
It is a book containing a comprehensive compilation of content in a branch of study with the intention of explaining it.
a textbook
It is a formal test that you take to show your knowledge or ability in a particular subject, or to obtain a qualification.
an exam
It consists of a list of times at which possible tasks, events, or actions are intended to take place, or of a sequence of events in the chronological order in which such things are intended to take place.
a timetable
It is the act of doing something again and again in order to learn or improve.
practice
It is the act of making an effort to learn by reading, practicing, or memorizing.
To study
It is an assignment given to a student to be completed outside the regular class period.
homework
It is one half of an academic year.
a semester