Teacher explaining
Palabras clave
curve,
angle,
mathematic,
number,
calculation,
science,
teacher,
classroom,
young,
book,
stack,
person,
desk,
education,
student,
learning,
college,
university,
studying,
exam,
blackboard,
text,
professional,
sitting,
school,
study,
profession,
happy,
reading,
exam,
cheerful,
thinking,
doubt,
friendly,
goggles,
book,
paper,
writing,
explaining,
listening,
passionate,
talking,
humor,
serious,
idea,
homework,
determined,
successful,
smart,
back
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