Classroom wallpaper on Desktop

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A thoughtful student in an empty classroom

A thoughtful student in an empty classroom

A thoughtful student in an empty classroom

A woman teaches a boy to read

A woman teaches a boy to read

A woman teaches a boy to read

A famous scientist at the blackboard with formulas

A famous scientist at the blackboard with formulas

A famous scientist at the blackboard with formulas

A group of children playing in a kindergarten

A group of children playing in a kindergarten

A group of children playing in a kindergarten

Vintage picture of a physicist in class

Vintage picture of a physicist in class

Vintage picture of a physicist in class

A scientist on the background of a blackboard with formulas

A scientist on the background of a blackboard with formulas

A scientist on the background of a blackboard with formulas

Image showing the direction of the sides

Image showing the direction of the sides

Image showing the direction of the sides

Films about education at school

Films about education at school

Films about education at school

Drawing in white chalk on a blackboard

Drawing in white chalk on a blackboard

Drawing in white chalk on a blackboard

Congratulations on the New Year and Christmas with chalk on the blackboard

Congratulations on the new year and christmas with chalk on the blackboard

Congratulations on the New Year and Christmas with chalk on the blackboard

Katy Perry on the cover. Board

Katy perry on the cover. board

Katy Perry on the cover. Board

Inscription on a green chalkboard

Inscription on a green chalkboard

Inscription on a green chalkboard

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Большая общественная группа с исторически определённым положением в системе общественного производства и определённой ролью в общественной организации труда, объединённая одинаковым отношением к средствам производства, к распределению общественного богатства и общностью интересов. Группа учеников одного и того же года обучения или ( напр. в художественных школах ) проходящая один и тот же предмет. Комната для занятий в школе. Разряд, подразделение (в различных классификациях). Степень, уровень чего-н. ,. В математике: совокупность цифр трёх соседних разрядов числа.