Práctica útil. Niño joven y apuesto que lucha resueltamente contra la basura y la basura mientras estudia el comportamiento consciente - Foto e imágenes de stock

Separating garbage. Blonde concerned boy carrying glass tube and deciding trash can for with kind of trash

Informative ecology lesson. Bearded teacher in checkered shirt helping his students with separating garbage into different boxes

Trash sorting. Ginger diligent teacher in clear glasses presenting boxes for trash while teaching and describing importance of sorting

Dealing with trash. Smiling positive teacher in checkered shirt controlling his young nature lovers during useful practice

Interested young boys. Attentive curious kids sorting out different kinds of trash during informative ecology lesson

Deciding trash can. Focused bearded teacher presenting different trash for his pupils and they choosing container for it

Choosing container. Attentive bearded teacher in clear glasses proposing metal can and asking about it place in recycling system

Working with students. Inspired school group with teacher working on recreating poster about environment

Technological developments. Selective focus of an electronic microscheme being in hands of joyful positive children

So interesting, Cheerful happy boys touching the microscheme while being interested in new technology

School classroom. Blond boy holding control unit, smiling excitedly, teacher sitting next to him

Tiring activity. Nice tired boy touching his forehead while being tired from work

Help and support. Positive joyful teacher sitting together with his pupils while helping them to build a robot

New technology. Happy joyful children studying together while having a science lesson

School classroom. Pupils building tower, attaching blocks, male teacher sitting next to them and watching

New skills. Nice smart man looking at his grandchildren while teaching them how to build robots