I have taught high school since 2005-2006. I create almost all my own materials because doing so helps me think through the questions, "What do I most want students to get out of this lesson?" and "What questions are they likely to have as we go through this topic?" I include insights gained in my teacher notes and directions. Courses that I have taught (and therefore developed the curriculum for and differentiated to multiple academic levels) are pre-algebra, algebra 1, algebra 2, general science, physics, and chemistry.