The following page of curated resources both delves into the background issue of diversity gaps in Computer science and offers support recruiting and supporting diverse classrooms.
Background Information
Code.org's Approach to Diversity in Computer Science
Diversity Gaps in Computer Science: Exploring the Underrepresentation of Girls, Blacks and Hispanics
Code.org Equity in Science Education Video
Organizations
Programs
Posters
Videos
Techbridge: Aileen's Story - Inspiring Girls To Change The World Through Science Tech & Engineering