Hi Zoe
I will respond to the two points about keyboards and dyslexia.
Keyboards
I do not know how you have come across such a strong position on typing being cognitively harmful, the evidence in the literature is not at all conclusive.
I don't doubt that many reports over-use it as a recommendation.
However, when correctly recommended, it will be essential. Handwriting is a very complicated coordination task, cognitively speaking, and if the student is inhibited in their processing of this task then insisting they carry it out is essentially cruel.
For many students the act of handwriting is so attention demanding it acts as an inhibitor for creativity, planning, sequencing and vocabulary. In short: they write very little, and very little of any use. For most people handwriting (once learned) is an automated process, which demands very little-to-no attention, which allows them to focus their attention on the other areas of handwriting listed above. Therefore, if a person is unable to enact anything, because their handwriting coordination/processing is so inhibited, then a word processor is unquestionable of more benefit than forcing them to hand write. Why? Because it allows them to focus attention on the other skills, which are actually essential.
An argument that handwriting is of value because it develops these cognitive functions is not valid when the task of handwriting itself inhibits them from developing those functions.
Dyslexia
Flanks, "dyslexia" is a catch all umbrella term with little actual definition and meaning.
No.
I know that many people use it as such, but no.
I suspect (from your comment) that you have been heavily influenced by the word of Dr Julian Elliott, or tabloid reporting of his work.
Dyslexia at it's core is quite well defined, the variability of definition comes from what behaviours are included in the definition.
Dyslexia is an unexpected failure to acquire literacy, even though there has been adequate teaching, socio-economic factors and ability to do so.
The reason gifted appears so often, is because one of the simplest ways to recognise dyslexia is for there to be a discrepancy between a person's IQ and their literacy skills. IQ testing has more evidence as a predictor of academic achievement than any other single test or assessment, although it is certainly not infallible, and so this discrepancy (with associated behaviours) is the easiest way to recognise dyslexia.
So when you say:
"Dyslexia" can mean pupil is entirely independent and requires no additional input what so ever" you are wrong. They need additional input to achieve their potential. If an extremely bright pupil achieves within the average range because a school fails to meet their needs then they have been disadvantaged as much as the less able student that achieves below the average range. This is the fundamental definition of inclusion (also enshrined in law by the way).
However, an intelligence/literacy discrepancy is not the only way to recognise it. It has been estimated that 80% of all people with dyslexia have a fundamental phonological deficit which prevents them from fluently learning and recognising letter/sound correspondence. Working memory is being researched more heavily and this is supporting research in to phonological processing.
There are two problems here:
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That dyslexia is misrepresented (by all parties) in the public domain. Elliott gets this correct, the general public quite often mistakenly believe that Dyslexia is very clearly defined, that a single test is carried out to diagnose it and it is used as a 'catch all' in general conversation to describe learning difficulties.
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People have attacked dyslexia (in much the way you have) erroneously, by representing dyslexia as the general perception, rather than the history and research which supports it. It is easy to attack a straw man.
However, there is overwhelming evidence that there are groups of people which are unable to acquire literacy skills for no evidence reason. Elliott himself agrees with this and is explicit on the fact.
Research often moves boundaries for diagnosis, and as all neurodevelopmental research progresses it is inevitable that our understanding of all cognitive learning and functions will change. This does not mean that dyslexia is undefined any more than it means heart disease is undefined just because we learn something new about how to recognise it in 10years time.