He believes in good pedagogy, reaching all learners, and building systems to serve schools. Richard taught chemistry at The Taft School (Connecticut), Maru-a-Pula School (Botswana), and Gateway High School (San Francisco). He has served as technology director at University High School (San Francisco) and Catlin Gabel School (Portland, Oregon). Richard writes online at Kassblog.com and @kassissieh.