Differentiated Instruction is a teaching philosophy based on the premise that teachers should adapt instruction to student differences. Rather than marching students through the curriculum lockstep, teachers should modify their instruction to meet students' varying readiness levels, learning preferences, and interests. Therefore, the teacher proactively plans a variety of ways to 'get it' and express learning.

We can always gain more depth and breadth in our work [as educators]. There are always new discoveries to be made.

Important element is deeply understanding our curriculum. Most teachers know what they're going to cover this week or this term. Few of us can specify precisely what students should know, understand, and be able to do as a result of any particular learning experience or set of learning experiences. Without that specificity, alignment between content, assessment, and instruction is weak.

I have find that today's students are often more tolerant of human variance than students in earlier generations might have been. On the other hand, some of our students need much more interaction with a wide variety of peers so they level of understanding deepens and so they are prepared to live in a world that is only going to get smaller.

In the field of education, educators know that they leave a lasting impact on their students for better or for worse. Trust is established or diminished in the classroom and very good educators understand that they are fallible. Despite their best efforts, they will not always do the best for each student.

We need to develop a robust set of tools - strategies and routines - that help us address student variance. It's easy to come to rely on two or three "trusty" instructional strategies like worksheets and lectures. Those are of little help in planning for a variety of student needs. As we develop a better toolbox, we're empowered to meet students where they are.

I think [testing] has had a profoundly problematic impact on student learning. It must seem to students that their worth as individuals is equivalent to their test score. The stress the high stakes culture has on teachers is also highly negative and must surely impact students in a negative way. It also de-professionalizes teachers because it encourages them to be script readers, followers of rigid schedules, and to disregard the needs of the people they teach in favor of the scripts and schedules.