Lehrerin blickt in Kamera und zeigt mit dem Finger auf mathematische Gleichungen auf Kreidetafel im Unterricht - Stockfoto & -bild

Female teacher in formal wear holding glasses and looking away in classroom

Beautiful female teacher with wooden pointer explaining mathematical equations in classroom

Positive teacher holding chalk near math formulas on chalkboard

Happy teacher holding chalk near mathematic formulas on chalkboard

Cheerful senior woman pointing whiteboard while standing at the classroom

Female teacher pointing with finger at mathematical equation on chalkboard in class

Male teacher in formal wear wiping mathematical equations with sponge in classroom

Male teacher wiping mathematical equations with sponge from chalkboard in classroom

Male teacher in formal wear writing equation on chalkboard in maths class

Young african american teenager writing on white board

Beautiful young teacher writing with chalk on blackboard

Male teacher sitting at desk, pointing finger in air and explaining equations in maths classroom

Young beautiful teacher pointing at chalkboard

Pensive male teacher touching chin and solving equation on chalkboard in class