Activities carried out outside of academic lessons; largely synonymous with 'special activities' and often includes clubs, committees, and event preparations.
教科外活動として運動部に参加している生徒が多い。
Many students participate in sports clubs as extracurricular activities.
学校は教科外活動を通じて協調性や責任感を育てようとしている。
The school aims to foster cooperation and a sense of responsibility through extracurricular activities.
教科外活動の一環でボランティア活動に参加した。
I participated in volunteer work as part of extracurricular activities.