certified and correct mark
Teacher and students, Learn and experiment with science in a school science classroom.
Female asian employee asking for explanation
Category concept. Different shape of yellow wooden geometry block rearrange into its category.
A young girl sat down on a Desk in the office and holding a phone.
Teacher and students, Learn and study in a classroom of school
Teacher and students, Learn and study about airplanes in a classroom of school
Husband and wife consult with the owner on the contract of house sale.
A young girl sat down on a Desk in the office and works with documents and a computer.
Children with classroom presentation activities in front of the classroom
Teacher and students, Learn and study in a classroom of school
Teacher and students, Learn and study in a classroom of school
Teacher and students, Learn and study in a classroom of school
A schoolchild with his rucksack to store vital stuff for class.
certified and correct mark. Standard certification, accurate selection, production standards
Teacher and students, Learn and study in a classroom of school
Male assistant providing single-word suggestions and example sentences for sentence change in chat
Teacher and students, Learn and study in a classroom of school
Teacher and students, Learn and study in a classroom of school
Students learn and study in a classroom of school where youngsters sit and play.
The doctor explains the problem to the patient on the computer.
When class becomes dull. The kids started to feel tired and sleepy.
Teacher and students, Learn and study in a classroom of school
A young girl sat down on a Desk in the office and works with documents and a computer.
Teacher and students, Learn and experiment with science in a school science classroom.
A young girl standing in the office and talking on the phone.
Teacher and students, Learn and study in a classroom of school
Students learn and study in a classroom of school where youngsters sit and listen attentively.
Businessman explaining, closeup of hands with pencil at office desk
Teacher and students, Learn and study in a classroom of school
