CBE—Life Sciences EducationCBE—Life Sciences Education (LSE), a free, online quarterly journal, is published by the American Society for Cell Biology (ASCB). LSE is written by and to serve professionals engaged in biology teaching in all environments, including faculty at large research universities who teach but do not view teaching as their primary mission, as well as those whose teaching is the major focus of their careers, in primarily undergraduate institutions, museums and outreach programs, junior and community colleges, and K–12 schools.