This would be useful on all exercises for students with certain learning disorders, but most important for the exercises geared toward younger students. For many of the Early Math exercises, the reading skills necessary to understand the question often exceed the math skills necessary to answer it correctly. Having a button that could be pressed on the page to read the exercise to the student would be incredibly helpful. Having the word being read light up as it's being said would be a nice bonus.
Tags: Accessibility, screen reader, read aloud, exercise audio.