School physics teacher in audience. Class lesson, blackboard and college, knowledge learning in classroom. Vector illustration flat education concept

Related tags:

• class
• school teacher
• teaching
• lesson
• teacher teaching
• blackboard
• academic
• academy
• classroom
• education
• school
• chalkboard
• university
• college
• learning
• knowledge
• professor
• chalk
• teacher
• formula
• science teacher
• physics
• board
• lecture
• science
• 19+