A person sitting at a desk in front of a chalkboard, studying math. 

Person Studying At A Desk

A man solving a math equation for a class assignment or exam while sipping on a cup of coffee.

Person Studying For A Class Or Exam

A woman creating, reviewing, or analyzing a piece of art for a class assignment or exam.

A woman doing research and taking notes for a class assignment or exam.

A man studying or revising for a global studies or communications class or exam on his tablet.

An abstract composition of a person completing an assignment or studying for an exam.

A stressed out female medical student working on a class assignment or studying online for an exam.