Hübsche junge Studentin schreibt während eines Mathematikunterrichts an der Tafel / Tafel - Stockfoto & -bild

Very pretty and young teacher in act to take a lesson near a blackboard

Pretty young college student near a blackboard with a white chalk in hand looking in camera

Student writing chemical symbol on blackboard

Learn science or chemistry formula confident beautiful woman teacher chalk blackboard background

Student enjoing for her chemical lesson in front of blackboard

Portrait of a young teacher at the blackboard in the classroom.

Happy collage school girl student portrait in classrom and library

Young smiling student or teacher at the blackboard

Woman chemist shows a molecular structure

Pretty young college student writing on the chalkboard/blackboard during a math class

Pretty young college student writing on the chalkboard/blackboard during a math class

Smiling pretty young college student at the blackboard during a math class

Cute brunette woman in white gown as a medical doctor looking at a test tube

Close up of a hand writing on a blackboard

Student dirl at a blackboard during a lesson thinking how to solve a math problem

Young nurse in a corridor hospital

Pretty young college student writing on the chalkboard/blackboard during a math class