The video is of Ellie at "New School" in a floor sitter that was built at her amazing school out of tri-wall and attached to a motorized scooter. This was then operated by the switch you can see in her lap. Ellie had to continuously press the switch to make it go forward. This video is of the second attempt. It goes very slowly so not much sense of movement. But she did get the whole concept of press the switch and make it go. Go Ellie!