Cut transition - Scene 2 - Walking into the park later at night - Some main characters and some extras
Cut transition - Scene 3 - Back in school - Student being shouted at by a teacher
Multiple angles can be used to show how many students are leaving, all showing different emotions. A mid shot would be used to show as many people as possible without being too far away, as well as showing the school's name and exterior.
A long shot would be used to show that the students are moving into a more secluded area, and also to show everything in frame that could interest the audience. Lighting may be needed to be able to see the teens moving, or torches could be used. Tripod setup not needed, point of view shot so the camera will need to be shaking a little. A slow beat begins.
A mid shot would be used so it is just enough to show both characters in the scene. Angry facial expressions and shouting let the audience know what's going on without diegetic sound.