Science, glass board and man writing a chemistry equation, formula or algorithm for medical researc
male teacher in glasses sitting at desk and explaining equations in maths classroom
smiling female teacher with wooden pointer explaining mathematical equations in classroom
a male person writing text with piece of chalk on blackboard, doing maths and physics equations
Person, hands and writing with book for equation, problem solving or diary on desk at office. Japan
Preteen girl standing with hands on hips and smiling in classroom with chalkboard equations
Side view of young teacher with short dark curly hair writing down equation
a male person writing text with piece of chalk on blackboard, doing maths and physics equations
Confident student standing in front of peers with a chalkboard full of math equations behind.
cropped view of female teacher with wooden pointer explaining mathematical equations in classroom
female teacher in formal wear with wooden pointer explaining mathematical equations in classroom
College education concept, Female tutor explaining math equations on whiteboard to student
pensive schoolgirl with hand near face looking at camera near chalkboard with equations
back to school study student tasks equations writing on chalkboard study
One foot in the northern and southern hemisphere at the Equator at 'Middle of the World', San Antoni
Mature serious professor standing in front of blackboard, writing down equation and explaining it
cropped view of female teacher with wooden pointer explaining mathematical equations in classroom
One serious young mixed race female scientist with a curly afro writing and planning equations on a
back view of schoolboy solving equations on chalkboard near teacher and multicultural classmates
back view of schoolboy solving equations on chalkboard near teacher and multicultural classmates
happy schoolkid with small globe pointing with pencil at camera near chalkboard with equations
male student looking at female teacher and solving equations during lesson in classroom
Female latin indian math school teacher student writing equation on whiteboard.
Palm Trees Sun Light Hot Equator Nature Landscape Tropical Background
female teacher in formal wear with wooden pointer explaining mathematical equations in classroom
Scientist team, science and chemistry equation on glass board while solving or discuss experiment o
Shot of a focused young female scientist solving equations on a glass wall in a laboratory
Cropped shot of a young female scientist writing equations on a glass wall in a lab
A boy writing scientific equations on a clear perspex board with a felt tip pen.
Einstein's Equation adapted to coffee power with creative stones over green sand
