Mashable: Extremely cool teacher runs math lesson from home within ‘Half Life: Alyx’. “Extremely cool teacher Charles Coomber —who works for California’s Springs Charter schools, at the Otay Ranch Academy for the Arts — taught a lesson in angle vocabulary from his apartment set within the long-awaited new virtual reality first-person shooter from developer Valve. Half Life: Alyx dropped on Monday, years after the iconic original game was released in 1998, and its sequel in 2006.”