1.
extracurricular lesson; out-of-class activity
An educational activity conducted outside the regular curriculum, such as a field trip, special lecture, or supplementary class.
課外授業に参加する。
To take part in an extracurricular lesson.
今日の課外授業は農場見学だ。
Today's extracurricular lesson is a visit to a farm.
学校は地域の歴史を学ぶ課外授業を毎年行っている。
The school holds an extracurricular lesson on local history every year.
A learning activity held outside the standard timetable and curriculum — field trips, guest lectures, nature observation, and the like. 課外 means 'outside the (regular) coursework.'
COMMON COLLOCATIONS:
- 課外授業を行う: to hold an extracurricular lesson
- 課外授業に参加する: to take part in an extracurricular lesson
SIMILAR WORDS:
- 課外活動: extracurricular activities — broader; includes club activities
- 校外学習: off-campus study; field trip — learning conducted away from the school grounds