Uczeń podnoszący rękę w pobliżu laptopa i zamazanych kolegów z klasy - Zdjęcie stockowe & obraz

Education, learning and people concept - male teacher and group of high school students raising hands in classroom

Pupils raising hands on lesson to answer teacher question

Elementary Classroom of Diverse Bright Children Listening to the Teacher Giving a Lesson. Everyone Raises Hand Knowing the Right Answer. Brilliant Kids in School Learning. Teacher Over Shoulder Shot

Brilliant Schoolboy Listens Attentively to His Teacher Explaning the Lesson. In Elementary School with Group of Bright Multiethnic Kids Learning Science. Back View Camera Shot with Focus on Student

Rear view of schoolgirl writing on chalk board and classmates with teacher sitting in classroom

Young teacher in classroom standing in front of class

Back view of blurred girl raising hand near smiling african american teacher

Cheerful boy with raised hand showing thumb up during lesson

African american teacher reading book to pupils during lesson

African american teacher pointing with felt pen at whiteboard during lesson

Blurred african american teacher writing on whiteboard near pupils in classroom

Girl with book and positive african american teacher looking at each other while standing in classroom

Smiling african american teacher holding book during lesson in classroom

Happy girl standing with book in classroom near african american teacher

Blurred interracial pupils with digital tablets near smiling african american teacher