Differentiated instruction, according to Carol Ann Tomlinson (as cited by Ellis, Gable, Greg, & Rock, 2008, p. 32), is the process of “ensuring that what a student learns, how he/she learns it, and how the student demonstrates what he/she has learned is a match for that student’s readiness level, interests, and preferred mode of learning”. Differentiation stems from beliefs about differences among learners, how they learn, learning preferences and individual interests (Anderson, 2007). "Research indicates that many of the emotional or social difficulties gifted students experience disappear when their educational climates are adapted to their level and pace of learning."1 Differentiation in education can also include how a student shows that they have mastery of a concept.
1 Neihart, Maureen ed., with Reis, Sally; Robinson, Nancy; and Moon, Sidney, (2002). The Social and Emotional Development of Gifted Children: What Do We Know? National Association of Gifted Children (Prufrock Press, Inc.). p. 286