"I feel more in control of the material. When I used a traditional textbook, I had to teach whatever was in the chapters. I suppose I could have skipped parts of each chapter, but usually I would not since I felt obligated to use as much of the textbook as possible, so the students would feel like they were getting their money's worth. With OER, I can adapt materials (as permitted by the license) so that I am including only the material I want to include. I have really enjoyed this part the most. 2) It's much easier to adapt the course material to meet the needs of my students. If I see a number of students are struggling with some concept, I can modify material or add material or even delete material. Several times over this semester, I modified my course content to make it clearer based on feedback from students. While it is also possible to modify content when using a traditional textbook, for me it meant I needed to find some non-textbook resource to fill in where the textbook was not sufficient. 3) In the past, I was not able to use the textbook until at least the 2nd week of the semester since many students did not have the text until then. Now, we jump right into the course material and everyone has access. "