I saw a movie a long time ago and I only remember 2 scenes. One scene there are some kids in an old school I think looking out a window and there's shooting going on outside the kids run off and you see one kid was shot in the head leaning against the glass. Another scene is the teacher running to get help and she gets shot running up a hill. The movie is in english I believe but seems to be based in another country and around the 50s. I believe its about the kids trying to survive in that school but I'm not sure

There's a scene in this movie set in a old school in a small town, where the shooting starts, the kids run, and they show one kid shot against the glass... It's not 50's though, so just a longshot

Red Dawn (1984)

Yay thank you so much I thinks this is what I was looking for