To tackle the question of how to design culturally responsive curriculum we need to look at why it matters. The connection between ecological diversity and linguistic/cultural diversity is rarely discussed yet is fundamental to developing understanding and empathy for people from different nations and origins. This topic can be a way to validate the diverse cultural backgrounds of your students, and particularly to help integrate and support your immigrant population. Below is the link to the Wikipedia definition.
Luis Maffi has spearheaded this research and her website Terralinga offers a wealth of information and educational projects to explore in the classroom.