There is a long history of this though, with student involvement in curriculum writing extending back to the 1970s. (soundout.org)
Resources at the site include information on how to participate and curriculum guides for all grade levels, as well as curricula written by schools / school districts participating in the mock election. (educationworld.com)
One of the biggest challenges was finding the funds for the professional development and curriculum writing for teachers that the new system required. (ascd.org)