What will the school people most concerned think in your DD's specific case, do you think? In your place I'd be inclined to fight bureaucracy and rule-followers, but perhaps not individuals who'd be interacting with my child who thought she, individually, shouldn't skip. (And if the result was that she didn't skip this year's maths and found it boring, I'd use that as a "see, if you want it you have to make sure you can jump the hurdle" lesson, and help fervently for next year.)

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