Resource that caught my Eye - Vizia

Vizia - https://vizia.co/, caught my eye from 1st click.  You are able to ask questions as students watch a video (it will pause the video and students have to respond before moving on).  This could be used with literally any subject where a video is shown.  As a library media specialist, this is the type of site I would love to share with teachers - not specific to a subject and can be used across many sections in the school.