As I understand Differentiation, it is a framework for teachers to involve their students in providing students with different learning styles to acquire content; to process the information,or make sense of the ideas being taught. Teachers are to develop teaching materials and assessments so that all students within the classroom can learn effectively, regardless of differences in ability. Teachers can use many different tools in the classroom to help with making sure all the studnets are learning effectively. You can never pick the students you have in your classroom each year so you as a teacher must be prepared to teach all of the students you have to their best ability. 
I experienced differentiation through looking at a powerpoint about differentiation. I learned alot about how to use differentiation in the classroom. I learned about how it is important to let students to opt out of material they can demonstrate they know and to progress at their own pace through new material.It is important to make sure that you area not holding other students back while using the differentiation method of teaching. I feel that it is good to use differentiation in the classroom because it allows you as a teacher to see which students can do the material and what students may need more help. I also experienced differentaion through a assignment where I had to make three profiles of students ranging from abilities so that I could see how I would use differentiation.It taught me a lot to have to figure out how I would adapt material to fit each students personalities and ability to learn the material I as the teacher am teaching. Each child is different and can be taught you just have to take the time to teach them.
In a differentiated classroom the role of technology I feel may play a role in the classroom.I feel that you can use technology to help incorporate teaching strategies. You can have some of your students working on the computer with skills such as math games or reading games. You could also find websites that showed you how well they are doing on online worksheets. this would be a great tool to have in the classroom. I feel that you should incorporate as much technology and other resources into your lessons to have a diverse classroom with many ways to learn.