board lesson icon sign vector
Schlüsselwörter
icon,
signs,
vector,
board,
lesson,
instructing,
learn,
school,
classroom,
education,
instruction,
cv,
student,
teacher,
blackboard,
blackboard,
whiteboard,
eraser,
marker,
subject,
topic,
seminar,
workshop,
tutorial,
module,
syllabus,
assignment,
homework,
lecture,
presentation,
strategy,
method,
approach,
technique,
skill,
cognition,
understanding,
concept,
theory,
practice,
activity,
exercise
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