Confident professor explaining formula during lesson
Geometry teacher stands at the blackboard and draws a section of the pyramid with a plane with chalk
A young teacher stands at the blackboard and explains the material on geometry to students
education
education
education
education
education
education
university
university
education
education
education
university
Montessori on wooden alphabet concept with toys on wooden background.
A simple mathematical task written on a gray chalkboard with white chalk
A simple mathematical task written on a gray chalkboard with white chalk
Constructing with lots of colorful plastic sticks.
Constructing with lots of colorful plastic sticks.
sitting
Student's ruler
Student's ruler
Student's ruler isolated on white
Student's ruler isolated on white background.
education
Student's ruler isolated on white background.
Student's ruler
Student's ruler
Distance learning, online education. School boy studying at home and doing homework. Selective focus
