Boy with notebooks against big blackboard with mathematical symb
Palabras clave
blackboard,
school,
children,
children,
education,
student,
mathematic,
classroom,
mathematic,
concept,
young,
boy,
man,
background,
chalk,
smart,
black,
signs,
symbol,
text,
formula,
wisdom,
blue,
shirt,
studio shot,
back to school,
doodle,
writing,
white,
big,
mathematical,
standing,
clever,
chemical,
quadratic,
molecular,
angle,
holding,
notebook,
exercise book,
elementary,
smiling,
fun,
learning,
studying,
wall
){kind=link}