Mobile learning (m-learning) involves using mobile devices like smartphones and tablets for educational purposes. It began in the 1970s with Alan Kay's development of the portable Dynabook computer. M-learning allows faster access to information anywhere and has lower costs than other methods. It can be used for notes, research, discussions, and educational apps. While m-learning provides benefits like accessibility and engagement, it also faces challenges of screen size, connectivity, app quality, and assessing learning outside the classroom.