[1] In 2007, she founded the Julia Robinson Mathematics Festival (JRMF),[2] which has grown into a successful math enrichment enterprise for teenagers in the USA and beyond.

[7] She was also inspired by the mathematics contest produced by Saint Mary's College of California[8] then popular with secondary schools throughout the San Francisco Bay Area.

[12] In 2005 while attending an education forum that promoted STEM [Science, Technology, Engineering, and Math][13] she remembered how the Saint Mary's College Mathematics Contest had inspired her as a student.

[17] Blachman has been working since 2015 with filmmakers to shine a light on people in difficult situations, to uplift marginalized voices, humanize them, and make their stories accessible—with the aim of encouraging viewers to take action.

Documentaries she has supported include Aftershock, Art Spiegelman: Disaster is My Muse, Ailey, Athlete A, Counted Out, Crip Camp, Dark Money, Free for All, Patrice: The Movie, The Fight, and The Social Dilemma.