Texas Mother Who Sparked Change to Textbook 'Downplaying Slavery' Believes 'More Needs to Be Done'

The mom said she believes the language insinuated that slaves came willingly.

Roni Dean-Burren, the 38-year-old mother from Pearland, Texas, told ABC News that she first came across the "World Geography" textbook last Wednesday after her 15-year-old son, Coby Burren, texted her a photo from the book's section on "patterns of immigration."