When Dr Martin Luther King was assassinated in 1968, US school teacher, Jane Elliott, decided to try to teach her all-white class about racism. She decided to segregate them according to the colour of their eyes, and treated them differently. Although controversial from the start, the “blue eyes/brown eyes” teaching exercise has been adapted in schools and workplaces for diversity training ever since. Jane Elliott has been explaining to Rebecca Kesby why she still thinks the model has value today in defeating racial prejudice.