Male science chemistry teacher calling on a female student to answer questions in a classroom at a college or university study group
Male teacher walking up to a chalk board and talking about a chemistry problem to his students in his college classroom
Teacher explaining answers to math and science problems to attentive eager high school or college university students in a classroom - slow motion stabilized shot
Teacher writing on a blackboard using chalk teaching chemistry in a high school or college classroom - stabilized shot
Student using smartphone to solve chemistry problem on chalkboard
Students working with teachers and assistants learning math and science in a college or high school classroom
Teacher and students in school classroom with science experiment
Teacher and students doing science experiment in school classroom
College student presenting robotic toy to science teacher at school
Teacher doing science experiment with students in school classroom
Teacher and students doing science experiment in school classroom
Teacher and students doing science experiment in school classroom