A teacher and student in a classroom with a blackboard
Schlüsselwörter
classroom,
teacher,
student,
blackboard,
education,
learning,
school,
mathematic,
equation,
apple,
book,
teaching,
chalk,
smiling,
happy,
lesson,
academic,
whiteboard,
marker,
handwriting,
formula,
algebra,
geometry,
instructing,
explaining,
pointing,
raising,
discussion,
exchange,
interaction,
people,
human,
children,
adult,
colourful,
illustration,
cartoon,
flat,
simple,
shape,
line,
fun,
engaging,
inspiration,
motivation,
white,
background
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