Instructional Design

I have mixed feelings about the quote, "Education has missed the boat, with respect to instructional design. Teachers come up with lesson plans on the fly, with little thought to why they are presenting information or even who their audience is. Teacher training, at the university level and during Professional development, needs to focus on helping teachers become comfortable with instructional design principles." As a teacher, I admit that I have come up with lesson plans on the fly. As educators, it is our job to do this occasionally. We sometimes have to scratch our plans for the day or for a specific subject and pull something out of our back pockets, because our students aren't ready for what we originally had planned, or a lot of students are absent that day, or we were going to use technology devices and the internet is down, or who knows what! We are juggling a lot in our classrooms and sometimes it just happens, we have to teach on the fly! I wouldn't say that I do it with little thought to why I am presenting the information or who my audience is though. I always know who my audience is, my 4th-grade students and I always have a reason for presenting information to them. If there are really teachers out there doing this, then I feel that they aren't doing their job. They are doing their students a disservice and that would start to reflect in their school work. I would hope that all teachers are teaching their students with a purpose and it is designed for their intended audience. I think having State Standards and/or Common Core Standards that have to be taught and met, help teachers to design lessons with a purpose and are for our intended audience since each grade level has a different set of standards. From there, teachers have to know their students in their classrooms well enough to be able to differentiate where it is needed. Also, most schools/districts have curriculum available to them that was designed with a purpose and for the audience in their classrooms. Maybe I feel this way because my teacher training at the university level and within professional development at my school/district has made me very comfortable and aware of instructional design principles. How do other educators feel about this quote?