When a bully parent insists their kid is advanced

This kid's in 8th grade math. She's only recently started testing at a proficient level on SBAC. I offer dozens of opportunities for kids to challenge their math abilities through homework and in class. She's done the challenge work maybe twice. Last year, her teacher offered similar challenge work but through Kahn, which she did none of.

The reason this has come up is because we were reviewing a 6th/7th grade standard in preparation for our next unit. We did some notes as a class, which she finished quickly and became bored while the rest of the class was going at my pace. She must've told her mom this, sparking this headache of a situation.

This mom has a history of being a bully, making a substitute cry last year because her "Spanish wasn't good enough" (the sub is a native speaker). I heard this student tell her mom to "please be nice" to her teachers at BTSN.

The meeting was mom, kid, VP, and me. I explained the litany of opportunities I offer to advanced kids (9th grade HW opportunities daily, a rotation of challenge questions on the board, increasingly challenging partner work, etc). Mom cut me off and told me it's not enough, all of these things are for kid to do on her own, but "she needs guidance to grow at her level." Ok.

Well next quarter I'm starting a club for kids that want to do math competitions. There, she'd work with a group of advanced kids doing challenging math problems that would push her skills. Mom
cuts me off again, she probably can't stay on Thursdays. Ok. Well that's not my problem...?

She continues saying that this doesn't change how bored she is in class. I reiterate that we are reviewing 6th/7th grade. Of course it's easy for her now.

I explain that ultimately it is kid's responsibility to have the motivation to learn and discover solutions to tough problems on her own, my guidance will not do the thinking for her. Mom cuts me off again and snarkily says "I love how you're phrasing it like it's 'self discovery' but I want her to be guided and taught at her level, not just given extra work to figure out on her own." Ok. I get that, believe me it's every teacher's dream to have every student being taught at their level. But I'm one person in a room filled with kids below grade level (what teacher isn't?).

I also expressed concern about social/emotional differences between MS and HS if we did advance her (we are 6-12). Parent responds "well if that became an issue I would handle that myself."

This mom kept coming back to the idea that her kid needs to be put in 9th grade math.

The vibe I'm getting from this kid is that she's a bit of a fast learner. But she does not know all of 8th grade math. So I said I'm not comfortable supporting the decision for her to skip 8th grade math, but I'll give her a summative test on all of 8th grade. If she passes, we can talk about advancing her.

But there is no way this kid is passing this test.

My VP backed me up the whole way and said I handled the situation super well.

I'm not really looking for advice, but I guess I do have one question. Do I provide the necessary formulas? Things like the distance formula, Pythagorean, volume, etc? She's likely never seen them before. But I want to eliminate any possibility of this parent telling me the test was unfair. WWYD?

The cherry on top is that I have a kid proficient in calculus in the same grade, and I have not gotten the same demands or complaints from his folks. He just takes advantage of the challenge work, will be part of the math competitions, and is working on getting HS math credits. If he's bored in my class, he hides it well.🤷🏻‍♀️ I wish I could do more for him!