Focas, Grant wrote:
For example, I work primarily on educational sites and we know that whitespace and the amount of words in a line are part of what determines how sighted people absorb the information and learn. The same information is available to a screen reader but the ability to absorb the information into learning is lessened - not just different but lessened.
Screenreader users can determine their own pace of reading, and can (provided documents are marked up properly) work their way from paragraph to paragraph etc at their own leasure, pause between sentences, go back, have a section re-read, get an overview of the structure, etc. Sure, stick someone in front of a screenreader set to read the entire page in one big go, and understanding will be lessened. But as screenreader use is an interactive process, I have serious doubts about your statement, sorry.
MathML is a classic example of this.
MathML is a whole separate kettle of fish, and I don't dispute that for long equations it will be more difficult to follow aural representations as opposed to visual ones. However, this is not just a problem online, as it's no different from, say, blind users learning maths from books in braille, audio tapes, etc.
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