Differentiated instruction has quickly become the hottest topic amongst education professionals. Every teacher wants to reach his students more personally, more efficiently, and more often with curriculum; and the concept of differentiating instruction proposes to accomplish all these goals. More educators need to work to incorporate this method into more traditional teaching methods. This paper begins by explaining the concept and various ways to approach it; following the explanation, examples of lesson plans differentiated in each piece (content, process, and product) by each variable (readiness, interest, and learning profile) are provided. Finally, evidence of the positive effects of differentiated instruction during the author's student teaching experience at Angola High School in Angola, Indiana is included. Also included is a copy of the unit plan created and implemented for the study.