Closeup face of excited professor or surprised teacher on blackboard isolated - Banco de fotos e imagens

Senior professor. Education and knowledge concept. Excited surprised teacher

Professor or serious teacher. Elderly man teacher on a blank chalkboard during lesson, teaching class at college. Think senior

Senior academic professor on lecture near empty blackboard. Knowledge and traditional education concept

Senior academic professor on lecture near empty blackboard. Knowledge and traditional education concept

Senior academic professor on lecture near empty blackboard. Knowledge and traditional education concept

Old teacher open arms in classroom. Happy friendly senior in front of a chalkboard. Funny professor or scientist in a elegant suit

Friendly teacher in classroom near blackboard desk. Education and learning people concept - female Teacher near blackboard. Teachers day. Thank You Teacher

Straight line. school disciplines. Education and knowledge. geometric shapes at high school. senior man teacher use ruler while drawing. mature tutor man draw with ruler on blackboard. back to school.

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Portrait of senior man with white beard over a wooden background

Old bearded man with serious face. Hairdresser with scissors cutting long grey beard in checkered shirt with scissors making new style on wooden wall background

Old bearded man with serious face. Hairdresser with scissors cutting long grey beard in checkered shirt with scissors making new style on wooden wall background

Senior man. Old man with white beard holding axe on red paper in wooden wall

Senior man. Portrait of senior man with white beard over a wooden background

Senior man. Old man shaving white beard with axe on wooden background

Senior bearded man or watchmaker with white beard in black hat with mechanical metallic gears keeps cogwheel and clock on grey wall

Senior man. Portrait of senior man with white beard over a wooden background