selective focus of smiling teacher in eyeglasses and interracial kids at table

adult africanamerican blackboy blackgirl blurred boys candid caucasian childhood children classmates classroom colorful cute education educational emotion emotional eyeglasses girls happy indoors innocence innocent interior kids knowledge learn man multicultural multiethnic multiracial papers people positive preschool preschooleducation preschoolers profession professionaloccupation room schooling selectivefocus smiling study studying tables teacher together tuition