African American girl sitting on floor in classroom and hiding her face while her classmates throwing paper balls into her. Concept of school bullying
Cruel schoolchildren insulting classmate together close up. Aggressive students shouting teasing unknown victim. Angry pupils bullies standing mocking in hall after classes. School bullying concept.
schoolchildren in school uniform in the classroom at the lesson
schoolchildren in the classroom in the lesson learn dna layout
Portrait of five multiethnic schoolchildren and their male teacher standing in classroom and looking at camera during engineering lesson
Close Up view of Kids Bullying classmate while Driving To Class on School Bus
Portrait of happy diverse schoolchildren at desks in school classroom
Portrait of happy diverse schoolchildren at desks in school classroom
Diverse happy schoolchildren at desks clapping in school classroom
Portrait of happy diverse schoolchildren at desks in school classroom
Happy diverse schoolchildren at desks writing in school classroom
Diverse happy schoolchildren sitting at desks in school classroom