Counting numbers at school lesson
Shot of a sleepy university student in a classroom with her classmates
A Japanese female teacher asks a student in the classroom
Listening to boring lecture
Studying all night has made him tired
Young man thinking
Smiling modern student couple giving high five
Sullen young woman holding umbrella
thinking funny girl
What did I just see
colorful photo a thinking girl
Group of elementary school kids mocking their classmate in the classroom.
All this thinking is hurting my head
Sad worried sorrowful young woman sitting on couch at home.
Exhausted woman working at desk late at night
Stress, education and study with woman in classroom for exhausted, mental health and anxiety in col
Side view of a Caucasian schoolgirl learning mathematics with an abacus in the classroom at school
Sad worried sorrowful young woman sitting on couch at home.
Sad worried sorrowful young woman sitting on couch at home.
colorful portrait of funny girl thinking
Depressed Asian man on the sofa
Low angle view of schoolboy solving mathematics on whiteboard in classroom
Im having a hard time
Depressed Asian man on the sofa
Depressed Asian man on the sofa
No...say it isnt so
Sad worried sorrowful young woman sitting on couch at home.
Sullen young woman holding umbrella
Sad worried sorrowful young woman sitting on couch at home.
Depression, anxiety and African student sad about college fail, stress and mistake on campus. Menta
