Over three decades ago, I attended education graduate school and then, for years, taught high school math abroad. I loved it and, I believe, my students appreciated me (now, as adults, they are the biggest portion of my Facebook friends). But, sadly, I felt that my pay was going to create a challenge for me and my family, once I were to have one. So, I left teaching. I have been involved in helping kids learn for over ten years, from lots of volunteer and some paid tutoring (much of both online) to homeschooling our younger son to creating and running enrichment classes for our kids' school. I'm now at a point in my life where I can stop my current work and return to the classroom. I believe there is a strong demand for capable high school math teachers. But, I do not have credentials and I don't think I can spend years getting them. I'm in San Francisco. Can anyone give me tips on how I might be able to land a high school math teaching job for this coming year? What I might need to to establish my credibility in the job? Thanks much!