Een man, handelend als leraar, leidt twee kinderen in het beklimmen van een muur in een helder en levendig klaslokaal. - Stockfoto’s en -afbeeldingen

Full-length shot of young dad securing little son in a harness for climbing a wall at gym

Cute group of kids exercising with balls during sport lesson at school

Young man is playing with teenager in the park

Sweet little preschool boy, climbing wall indoors, having fun, active children

Young man is playing with teenager in the park

Selective focus of boy looking at kid in helmet outside

Montessori materials, happy female teacher observing concentrated boy near children during class

Curly boy looking at globe near blurred teacher and girl in montessori school

Interracial children playing with didactic materials on table in montessori school

Selective focus of cute african american kid near friends

Cropped view of boy competing in tug of war with multicultural friends

Teacher talking to multiethnic kids near didactic materials in montessori school

Selective focus of father and son playing table soccer at home