out-of-school learning; off-campus learning
Refers to educational activities conducted outside the regular school campus, such as field trips, excursions, or community-based projects.
We will go to the science museum for next month's off-campus learning activity.
校外学習の一環として、地域の清掃活動に参加した。
As part of out-of-school learning, we participated in a local cleanup activity.