That's a very good question :)
Although she has been assessed by the LEA SALT (speech and language therapist) and the LEA SpLD EP, neither of them tested her memory properly.
So I have to guess.
There was a problem with stuff going in. Which I think was purely a language problem. For example towards the end of Y3 I asked her what she did in maths today and she said 'I don't know, but on the board there was a 1 and a line and a 4' and in the beginning of Y4 she said 'I don't know what it's called but there was a line and a dot and a dot'
She did actually know how to do division, but just didn't know the word for it.
2 months after starting TH (Jan Y4) I asked her what she did in maths and she said 'fractions' and I said what did you learn about fractions and she said 'they have a numerator at the top and a denominator at the bottom'!
So basically previously she could just not learn new words.
Not sure if that explains why she couldn't learn her alphabet or graphemes. We didn't make any progress with them till march Y3 when we did auditory integration training. After that she was sudden,y able to learn (or remember) all her graphemes (ay, ee, or etc). AIT improved her hearing so that suggests to me that she couldn't hear clearly enough before hand to understand what 'or' etc were.
However in both cases it really appeared like her memory improved.
She can now talk about things that happened ages ago, ie before these treatments, so I guess the problem was she couldn't get the info out, rather than it didn't go in?
I also don't know how much of her problem before was a restricted vocab, so she couldn't say what she wanted to (because she couldn't learn new words) and very slow processing which meant she couldn't recall (eg graphemes) in a reasonable time frame, rather than couldn't recall them at all.
She also couldn't learn any words by sight. Ie in Y2 she was still learning to read the 45 reception words (it, is, in etc) (I know those words can be decoded - but I'm saying she could neither learn to decode them or learn them by sight/repetition).
Now she does learn words after reading them a few times. Particularly she will read or guess them correctly if they're repeated soon after.
I don't know what bit of memory stopped her from remembering words, or has improved to allow her to now remember them. Her visual memory?
She still looses her coat and jumper every single day. So there is still another bit of her memory which doesn't work at the moment........
But she was able to tell me a fair bit about the class trip to a Buddhist temple this week, and could tell me about Buddhism. Whereas in Y3 when they went on a class trip to a synagogue she Couldn't even tell me where they went or what religion it was a church for or anything at all about Judaism.
Another thing she really can't remember is where the keys are on the keyboard. She absolutely can't type because she has to hunt (a long time) for every single letter.