According to the Texas Education Government Agency (https://tea.Texas.gov/Academics/Instructional_Materials/Accessible_Instructional_Materials/), this website "serves as a resource to state and district-level educators, parents, publishers, conversion houses, accessible media producers, and others interested in learning more about accessible educational materials and the National Instructional Materials Accessibility Standard (NIMAS)."
At U of Texas Dallas Twitter is credited with encouraging 100% student participation. Students enjoy that everyone can be heard from regardless of class size and that format allows swift recap of important lesson components