Students who struggle with reading often have mastered specific elements of reading, but they can't knit them together into robust adult reading. It's not that the students cannot read, think or question; it's just that some of the machinery is not working smoothly. What can high school teachers do about it? In response to this challenge, Fannie Lou Hamer Freedom High School in the South Bronx, in partnership with a literacy specialist from the Perceptual Development Center (PerDev), created an iBook with text and interactive video exploring fluency, decoding and comprehension. The classroom demonstration will model how teachers can use video to assess high school student reading. We will collaborate on developing instructional moves to use with students in our classrooms.