In less than 24 hours, a GoFundMe campaign raised the money to take 3rd through 7th graders to the new "Black Panther" movie.
From social justice lessons to personal stories, organizers sought to reinforce the movement's 13 guiding principles.
Organizers said people in 100 schools participated. Students said the activities were affirming. The District barred coverage of in-school events.
Williams discussed criminal justice and the Black Lives Matter movement with students.
Organizers give students a place to speak out during political convention.