“I complete my homework because the teacher gives us marks for each assignment” is an example of extrinsic motivation. Psychologists have identified two distinct forms of motivation — intrinsic and extrinsic. Intrinsic motivation refers to an inherent interest in pursuing a topic (“learning for learning’s sake”). These individuals find a subject enjoyable and they naturally desire to learn mostery of it. Extrinsic motivation, on the other hand, refers to a desire to pursue a subject for reasons outside of the individual, such as rewards, grades, parental or instructor approval, etc. These individuals are motivated to learn a subject not because they want to learn it, but because learning the material will get them good grades, parental praise, or because jobs in that field pay well; all of which are external rewards.