Teacher cleaning a large blackboard with a yellow sponge in a classroom, preparing for new lessons
Palabras clave
teacher,
blackboard,
classroom,
cleaning,
sponge,
education,
school,
back,
learning,
cognition,
teaching,
preparation,
erasing,
chalk,
green,
background,
woman,
female,
prof,
educator,
instructor,
academy,
college,
university,
lesson,
course,
study,
student,
pupil,
information,
communication,
lecture,
seminar,
tutorial,
training,
cv,
pedagogy,
academic,
view,
vertical,
indoor,
daytime,
1,
person,
real,
people,
supply
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