Happy male teacher with a beard standing with his arms crossed in front of a chalkboard filled with diagrams and notes.
Palabras clave
teacher,
male,
happy,
arms crossed,
blackboard,
diagram,
note,
classroom,
educator,
standing,
confident,
professional,
academic,
learning,
education,
teaching,
blackboard,
cognition,
smiling,
school,
lecturer,
instructor,
intelligent,
subject matter,
writing,
leadership,
authority,
thoughtful,
positive,
lesson
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