educational process came to a dead lock

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Grandfather and grandson studying together

Grandfather and grandson studying together

Discovering new facts is always exciting

Discovering new facts is always exciting

Asian boy drawing geometric shapes using ruler

Asian boy drawing geometric shapes using ruler

Asian boy drawing geometric shapes using triangular ruler

Asian boy drawing geometric shapes using triangular ruler

A rubik's cube puzzle lying against a plain white background

A rubik's cube puzzle lying against a plain white background

A rubik's cube puzzle lying against a plain white background

A rubik's cube puzzle lying against a plain white background

Pe female teacher yelling at her pupil

Pe female teacher yelling at her pupil

Female coach training a pupil

Female coach training a pupil

Female coach training a pupil

Female coach training a pupil

Physical education female teacher and pupil yelling at each other

Physical education female teacher and pupil yelling at each other

Side view of a perplexed female doctor pointing watch and looking at camera

Side view of a perplexed female doctor pointing watch and looking at camera

Female coach training a pupil

Female coach training a pupil

Coffee stimulates ideas' creation process

Coffee stimulates ideas' creation process

Child on the table

Child on the table

Child lying on the table

Child lying on the table

Kid lying down on the table with covered head

Kid lying down on the table with covered head

Boy lying down in profile

Kid lying down on the table

Kid lying down on the table

Woman at the table tired after work

Woman at the table tired after work

Three-quarter view of an old man in yellow pullover holding hands together with his eyes closed

Three-quarter view of an old man in yellow pullover holding hands together with his eyes closed

Side view of an old man in yellow pullover holding hands together with his eyes closed

Side view of an old man in yellow pullover holding hands together with his eyes closed

Front view of an old man in yellow pullover holding hands together with his eyes closed

Front view of an old man in yellow pullover holding hands together with his eyes closed

Creative process

Creative process

Tired young woman standing on stepladder with a drill and holding her had

Tired young woman standing on stepladder with a drill and holding her had

Creative process

Creative process