Riendo niños posando en la alfombra de fitness con los pulgares arriba - Foto e imágenes de stock

Smiling kids lying on yellow fitness mat

Cute preteen kids lying on fitness mat and looking at camera

Amused pupils. Four classmates showing thumbs up and smiling standing in the school corridor

New ideas. Cheerful teenage students sitting in the classroom and discussing alternative energy sources while one of the girl pointing at wind turbines

Happy schoolchildren raising hands and looking at camera in stem class

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

Cheerful schoolgirl taking selfie with friends and showing peace sign in classroom

Smiling pupils with notebooks and books discussing in classroom

Happy preteen pupils using laptop in classroom with smile

Group of adorable pupils posing in school garden

Four pupils with backpacks jumping in front of blackboard

Happy preteen pupils using laptop in classroom with smile

Cheerful schoolgirl taking selfie with friends and showing peace sign in classroom

Smiling pupils with notebooks and books discussing in classroom