How are different forms of prejudice connected?  How do collective acts of remembering and forgetting particular atrocities affect collective actions in the present?  And how can we design learning environments that support young people to engage with the lessons of violent histories?  My research combines the design of Holocaust education -- grounded in canonical texts of Holocaust Studies -- with pedagogical design -- framed by core ideas within the field of the Learning Sciences.  I focus on the pedagogical implications of educators' perceptions of Holocaust history, as well as how young people draw connections between Holocaust history and contemporary cases of oppression and atrocity.  Underpinning my research is my interest in how the marginalization of particular collective memories lead to enduring exclusions of particular social groups.