I am an Aerospace Engineer who became a Physics teacher as a second career and has never looked back. In my 10 years in the classroom, I have come to love the modeling methodology and the philosophy behind it. My students take ownership of their learning in order to push their own understanding forward. I have mostly been focused on Physics, having started teaching with 11/12th grade on level, honors and AP C students. I have helped to develop curriculum with the Center of Mass Model materials that are on the document repository and presented about this model at modeling conferences around the Midwest. I have used modeling in all my classes to great effect and my confidence in the process is what lead to my greatest modeling undertaking. We recently completed the transition to a Physics First curriculum at my school which I oversaw as the department chair. I was the co-writer on the Physics curriculum that we wrote with modeling serving as the underpinnings. I then co-wrote the adjustment of the chemistry curriculum to take advantage of Physics First. We use modeling with our 9th grade physics, 10th grade chemistry, and upper-level biology classes. We have extended that modeling pedagogy down to our middle school students as well and the students look forward to the ability to share what they are thinking in classroom discussions, as all good scientists should.