DD13 is at a grammar school and did very well (objectively) in the maths part of the 11+. Her mental maths has always been exceptional, and she didn't really struggle much in Y7 maths - no longer top of the form, but to be expected in a more competitive environment.
In Y8 things seem to have gone totally to pot. She is struggling with algebra massively. I can explain concepts to her (e.g. the nth term) and she will get the hang of it - but two days later she's forgotten it again. It's too conceptual for her.
She's doing quite badly in her homework (averaging 50%). The school run a Maths Club, but she won't attend voluntarily because it's also where they send kids who don't do their homework, and she's very diligent and would feel it was a punishment. (And to be fair, she's 13 and wants to hang out with her friends, not spend more time on her least favourite subject.)
I think it's just moving too quickly for her. She is generally not struggling at grammar - of course she has her stronger and weaker subjects but she is a mid-high performer across all other subjects.
Maths is also not my strong suit, and the trickier questions she gets are now beyond my reach. My 1996 B grade in GCSE maths was a very long time ago, and I have forgotten the vast majority of what I learned.
I got a friend round last night to show her straight line graphs. DD made all the right noises, was very polite and compliant... and appears to have taken literally nothing in.
I spoke to her Maths teacher in January and said I was concerned - so she's been moved to the front of the class - but I'm not seeing any improvement. DD says they have 3 different maths teachers - and one of them is an ECT, and DD has blamed the quality of the teaching, but having spent some time with her, I'm confident she is genuinely finding the concepts difficult, regardless of who is explaining them.
We are happy to consider outside tuition if we need to, though I am conscious that she already gets a lot of homework, so I don't want to overload her.
I guess what I'm asking is did your DC struggle with algebra in Y8 - and if so, what helped?