This is the 9955th most frequent Korean word.
공립초등학교에서
"At a public elementary school."
The phrase '공립초등학교에서' indicates the location where the activities take place.
공립초등학교에서 학생들은 다양한 활동에 참여합니다.
At a public elementary school, students participate in various activities.
Here, '공립초등학교에서' shows the work location of the speaker.
나는 공립초등학교에서 근무하는 교사입니다.
I am a teacher working at a public elementary school.
The usage of '공립초등학교에서' describes the venue of the event.