Stephen taught Pre-AP and AP Chemistry for six years at Harding Charter Preparatory, an urban high school in Oklahoma City. He is a practitioner and advocate of student-centered and inquiry-based methods of teaching and has used POGIL (Process Oriented Guided Inquiry Learning) with both high school and university students for over ten years. Stephen has been leading College Board and POGIL workshops since 2007 and was an AP exam reader in 2008. He was a co-author of PASCO Scientific’s “Advanced Chemistry Through Inquiry” lab manual, an editor for the High School POGIL Initiative (HSPI), and is a reviewer of AP course audits.