The piece highlights how the interactive biographies will enable future generations to ask questions of and receive immediate answers from pre-recorded images of Holocaust survivors, long after the last of the living witnesses are gone.

The news about a group of teenagers throwing a Nazi salute at a party in Orange County is a startling reminder that knowledge of the Holocaust is fading. Here are four free online classroom-ready activities on IWitness that address the topics of antisemitism, bystanders and hatred.