Nuevas ideas. Alegres estudiantes adolescentes sentados en el aula y discutiendo fuentes de energía alternativas mientras una de las chicas apunta a los aerogeneradores - Foto e imagen de stock

High spirits. Handsome blonde boy leaning on table while looking straight at camera

Alternative energy. Ginger girl pointing on wind turbines attracting attention of her interested classmates

Multiethnic schoolkids giving high five while studying with molecular model in classroom

Education, elementary school, drinks, children and people concept - group of school kids with smartphone and soda cans taking selfie in corridor

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

Enjoying team work. Happy good-looking children and teacher enjoying their team work all together

Telling test results. Dark-skinned experienced stylish teacher telling test results for her smart pupils

Before the test. Attentive teacher giving her serious pupil a sheet of paper with the test assignment.

Creativity. Creative attentive boy making a paper figure while spending time with mates

Funny learning. Three smiling children learning chinese at the desk with laptop, tablet and different books.