Differentiated Instruction is a cyclical process of finding out about the learner and responding by differentiating:
Knowing the Learner: Continually building awareness of students’ learning strengths and needs by observing and assessing their readiness, interests and learning preferences
Responding by Differentiating: Using a broad repertoire of effective instructional and assessment strategies to differentiate how students learn and how they demonstrate their learning (content, process, product, and learning environment)
Ontario Ministry of Education. (2010). Differentiated Instruction Educator’s Package.