Bullying. Rubio chico sufriendo de sus compañeros de clase intimidación - Foto e imagen de stock

At school. Children sitting at the desks in the classroom and looking contented

Bullying. A girl in pink tshirt suffering from classmates bullying

Attentive children working with parts of robot at STEM robotics lesson

Classmates. Children sitting at the desks in the classroom and talking

Greeting. Schoolchildren greeting each other keeping social distancing

Bullying. A boy in green tshirt suffering from classmates bullying

Back view of bullied schoolgirl sitting near schoolkid with smartphone and cruel classmates, cyberbullying concept

Selie at school. Two girls making selfie at school using a smartphone

Different variations. Three pupils standing in the school corridor looking at the tablet screen and talking

Funny lessons. Happy pupil having fun sitting between her classmates in the class

Helping hand. Concentrated girl standing between boys from her class sitting at the school desk

Explaining to the group. A schoolboy writing on the whiteboard for other pupils

Learning letters. Children learning the alphabet while doing interesting tasks

Collective work. Smiling school girl giving her teacher cards during the lesson

Forming a group. Elementary classmates holding their hands standing behind the desks in the classroom