Un niño se sienta en un escritorio, enfocado y con un bolígrafo en la mano, escribiendo en un pedazo de papel en un ambiente brillante y animado de clase. - Foto e imágenes de stock

Portrait of mature teacher standing in university library and looking at camera with copy space. Happy mid adult lecturer at classroom standing after giving lecture. Satisfied high school teacher smiling and looking at camera while his studets studyi

High School Tutor Giving Male Student One To One Tuition At Desk In Classroom

Teacher with marker and digital tablet standing near pupils

Teacher with marker and digital tablet standing near pupils

Asian schoolboy looking at notebook near erase board and teacher

Cheerful schoolboy talking to friend while using digital tablet near notebooks on desk in classroom

Smiling pupil with book pointing with finger near teacher and classmates

Teen schoolboy talking to african american teacher during lesson with devices in classroom

Teacher standing near sad schoolboy in classroom

Asian schoolboy with notebook standing in classroom

Schoolgirl looking at notebook while talking near classmates and teacher

Smiling teacher pointing with finger near schoolboys and gadgets in classroom