many puppil or students hands raised with a solution on a lesson or lecture with a teacher speaking
Palabras clave
classroom,
pupil,
school,
education,
children,
class,
teacher,
learning,
lesson,
boy,
hand,
student,
person,
caucasian,
girl,
elementary,
cognition,
raised,
teaching,
back,
group,
woman,
blackboard,
blackboard,
studying,
man,
many,
answer,
male,
classmate,
development,
question,
indoor,
crowd,
listening,
mathematic,
solution,
schoolboy,
profession,
lecture,
write,
chalk,
university,
speak
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