You will know that you have been successful at differentiating when: you begin to see yourself as an organizer of learning opportunities rather than the “sage on the stage”; your assessment and instruction become inseparable; you have created a community of learners who respect the individual differences within your classroom and can work independently according to the working conditions developed for your classroom; and finally, all your students, whether they are below, at, or above grade level, are feeling challenged and motivated to reach their maximum potential by learning new, meaningful, and essential concepts, principles, and skills.