Old professor physicist and young student in the classroom
Palabras clave
academic,
back,
ball,
blackboard,
board,
book,
blackboard,
class,
classroom,
college,
discussing,
education,
exam,
explaining,
learning,
lecture,
lecturer,
lesson,
man,
meditating,
meditation,
physicist,
physics,
preparation,
preparing,
prof,
reading,
school,
science,
stress,
student,
study,
studying,
teacher,
teaching,
textbook,
to,
trainee,
training,
tutor,
tutoring,
university,
newton,
cradle,
pendulum,
rocker,
executive,
ball,
clicker
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